2, 8, 8, 2 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 10 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 9, 1 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 2, 8 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Konfigurasi kulit elektron dari unsur <img align="middle" alt="begin mathsize 14px style Ca presubscript 20 presuperscript 40 end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Ca«/mi»«mprescripts/»«mn»20«/mn»«mn»40«/mn»«/mmultiscripts»«/mstyle»«/math»" data-latex="\style{font-size:14px}{{}_{20}^{40}\mathrm{Ca}}" height="20" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="30" />&nbsp;adalah ....

2, 8, 8, 1 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 9 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 2, 7 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 9, 8 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Konfigurasi elektron dari unsur&nbsp;<img align="middle" alt="K presubscript 19 presuperscript 39" class="Wirisformula" data-custom-editor="chemistry" data-latex="{}_{19}^{39}\mathrm K" data-mathml="«math class=¨wrs_chemistry¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mmultiscripts»«mi mathvariant=¨normal¨»K«/mi»«mprescripts/»«mn»19«/mn»«mn»39«/mn»«/mmultiscripts»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;menurut Bohr adalah ....&nbsp;

2,&nbsp;8, 18,&nbsp;32, 18, 1 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2,&nbsp;8, 18, 18,&nbsp;8 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 18, 32, 18, 8, 2 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2,&nbsp;8,&nbsp;18,&nbsp;32,&nbsp;32,&nbsp;18, 18, 1&nbsp;&nbsp;<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2,&nbsp;8,&nbsp;18,&nbsp;8,&nbsp;2 <img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Konfigurasi elektron yang tepat untuk unsur <img align="middle" alt="Xe presubscript 54 presuperscript 131" class="Wirisformula" data-custom-editor="chemistry" data-latex="{}_{54}^{131}\mathrm{Xe}" data-mathml="«math class=¨wrs_chemistry¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mmultiscripts»«mi»Xe«/mi»«mprescripts/»«mn»54«/mn»«mn»131«/mn»«/mmultiscripts»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;adalah ....<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

<img align="middle" alt="begin mathsize 14px style P presubscript 15 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi mathvariant=¨normal¨»P«/mi»«mprescripts/»«mn»15«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAQCAYAAAAWGF8bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAKIPF7gAAAAINJREFUeNpjYCAP/EfC34B4NxBrMVAA/iOx2YA4GojPUctAGPhFTQOZgPgTtQwEGRYJxKsoNfA/1Js3gHgKEItSOwwZaGqgJRDvJ5De/pNi4F4civ5T4uX/1A4rXAb+AOJNQCxNrYDmAeJmID5K7Zj7RU0D44H4ErnFEbo4yGUniS2eAAFCL0G4wZKQAAAA1HRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiIGNsYXNzPSJ3cnNfY2hlbWlzdHJ5Ij48bXN0eWxlIG1hdGhzaXplPSIxNHB4Ij48bW11bHRpc2NyaXB0cz48bWkgbWF0aHZhcmlhbnQ9Im5vcm1hbCI+UDwvbWk+PG1wcmVzY3JpcHRzLz48bW4+MTU8L21uPjxtcm93Lz48L21tdWx0aXNjcmlwdHM+PC9tc3R5bGU+PC9tYXRoPle+de0AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -6px;" width="20" />&nbsp;

<img align="middle" alt="begin mathsize 14px style Mn presubscript 25 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Mn«/mi»«mprescripts/»«mn»25«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="33" />&nbsp;

<img align="middle" alt="begin mathsize 14px style Zn presubscript 30 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Zn«/mi»«mprescripts/»«mn»30«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="29" />&nbsp;

<img align="middle" alt="begin mathsize 14px style As presubscript 33 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»As«/mi»«mprescripts/»«mn»33«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="29" />&nbsp;

<img align="middle" alt="begin mathsize 14px style Br presubscript 35 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Br«/mi»«mprescripts/»«mn»35«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="26" />&nbsp;

Suatu unsur memiliki konfigurasi elektron 2, 8, 18, 5. Unsur tersebut adalah ....<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" data-latex="\;" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

P (Z&nbsp;=&nbsp; 23)<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Q (Z&nbsp;= 36)<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

R (Z&nbsp;= 53)<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

S (Z&nbsp;= 55)<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

T (Z&nbsp;= 86)<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Atom X&nbsp;memiliki nomor atom 35. Atom yang memiliki elektron valensi yang sama dengan atom X adalah ....<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 18,&nbsp;18, 8, 8, 2<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 18, 8, 8, 2<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 18, 18, 8, 2<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 32, 8, 2<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2, 8, 18, 18, 10<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Atom X memiliki nomor massa 106 dan nomor neutron 50. Konfigurasi elektron yang tepat untuk atom X adalah ....<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

<img align="middle" alt="begin mathsize 14px style Ge presubscript 32 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Ge«/mi»«mprescripts/»«mn»32«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="30" />&nbsp;

<img align="middle" alt="begin mathsize 14px style Kr presubscript 36 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Kr«/mi»«mprescripts/»«mn»36«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="27" />&nbsp;

<img align="middle" alt="begin mathsize 14px style Ag presubscript 47 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Ag«/mi»«mprescripts/»«mn»47«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="31" />&nbsp;

Berikut ini unsur yang memiliki elektron valensi sebanyak 5&nbsp;adalah ....<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" data-latex="\;" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

4 elektron di kulit M<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

4 elektron di kulit O<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

8 elektron di kulit L<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

3 elektron di kulit O<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

8 elektron di kulit Q<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Jika atom X isotop dengan atom&nbsp;<img align="middle" alt="begin mathsize 14px style Sn presubscript 50 presuperscript 118 end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»Sn«/mi»«mprescripts/»«mn»50«/mn»«mn»118«/mn»«/mmultiscripts»«/mstyle»«/math»" data-latex="\style{font-size:14px}{{}_{50}^{118}\mathrm{Sn}}" height="20" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="35" />, jumlah elektron valensi dari atom X tersebut adalah ....

7 dan 3<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

7 dan 11<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

8 dan 3<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

3 dan 2<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

17 dan 12<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Perhatikan tabel berikut! 
&nbsp;

<img alt="" src="https://imgix3.ruangguru.com/assets/miscellaneous/png_ik7lvj_7656.PNG" style="width: 224px; height: 88px;" /> 
&nbsp;

Elektron valensi dari atom Br dan Y secara berurutan adalah ....

1, 2, dan 3<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

1 dan 3<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

2 dan 4<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

4 saja<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

1, 2, 3, dan 4<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Perhatikan atom-atom berikut!

<img align="middle" alt="begin mathsize 14px style 1. space Br presubscript 35 presuperscript blank
2. space Mo presubscript 42 presuperscript blank
3. space I presubscript 53 presuperscript blank
4. space Cs presubscript 55 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mn»1«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi»Br«/mi»«mprescripts/»«mn»35«/mn»«mrow/»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»2«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi»Mo«/mi»«mprescripts/»«mn»42«/mn»«mrow/»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»3«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»I«/mi»«mprescripts/»«mn»53«/mn»«mrow/»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»4«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi»Cs«/mi»«mprescripts/»«mn»55«/mn»«mrow/»«/mmultiscripts»«/mrow»«/mstyle»«/math»" data-latex="\style{font-size:14px}{1.\;{}_{35}^{}\mathrm{Br}\\2.\;{}_{42}^{}\mathrm{Mo}\\3.\;{}_{53}^{}\mathrm I\\4.\;{}_{55}^{}\mathrm{Cs}}" height="100" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -52px;" width="51" />&nbsp;&nbsp;

Atom yang memiliki elektron valensi yang sama dengan&nbsp;<img align="middle" alt="begin mathsize 14px style At presubscript 85 presuperscript blank end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mmultiscripts»«mi»At«/mi»«mprescripts/»«mn»85«/mn»«mrow/»«/mmultiscripts»«/mstyle»«/math»" data-latex="\style{font-size:14px}{{}_{85}^{}\mathrm{At}}" height="16" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="27" />&nbsp;ditunjukkan oleh&nbsp;nomor ....

pernyataan benar, alasan benar, keduanya ada hubungan sebab akibat<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

pernyataan benar, alasan benar, keduanya tidak ada hubungan sebab akibat<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

pernyataan benar dan alasan salah<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

pernyataan salah dan alasan benar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

pernyataan dan alasan, keduanya salah<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Atom A dengan nomor massa 73 dan neutron 41 akan memiliki konfigurasi elektron 2, 8, 18, 8, 5

SEBAB

konfigurasi elektron atom tersebut&nbsp;ditentukan dari jumlah elektronnya, yaitu 32.

 
Pilihlah:<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" data-latex="\;" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

<img align="middle" alt="begin mathsize 14px style A presubscript 32 presuperscript blank minus sign open parentheses I I close parentheses end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mmultiscripts»«mi mathvariant=¨normal¨»A«/mi»«mprescripts/»«mn»32«/mn»«mrow/»«/mmultiscripts»«mo»-«/mo»«mo»(«/mo»«mi»II«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="18" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="54" />&nbsp;

<img align="middle" alt="begin mathsize 14px style B presubscript 34 presuperscript blank minus sign open parentheses I V close parentheses end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mmultiscripts»«mi mathvariant=¨normal¨»B«/mi»«mprescripts/»«mn»34«/mn»«mrow/»«/mmultiscripts»«mo»-«/mo»«mo»(«/mo»«mi»IV«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="18" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="57" />&nbsp;

<img align="middle" alt="begin mathsize 14px style C presubscript 36 presuperscript blank minus sign open parentheses I V close parentheses end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mmultiscripts»«mi mathvariant=¨normal¨»C«/mi»«mprescripts/»«mn»36«/mn»«mrow/»«/mmultiscripts»«mo»-«/mo»«mo»(«/mo»«mi»IV«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="18" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="59" />&nbsp;

<img align="middle" alt="begin mathsize 14px style D presubscript 38 presuperscript blank minus sign open parentheses I I close parentheses end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mmultiscripts»«mi mathvariant=¨normal¨»D«/mi»«mprescripts/»«mn»38«/mn»«mrow/»«/mmultiscripts»«mo»-«/mo»«mo»(«/mo»«mi»II«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="18" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="54" />&nbsp;

<img align="middle" alt="begin mathsize 14px style D presubscript 38 presuperscript blank minus sign open parentheses I I I close parentheses end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mmultiscripts»«mi mathvariant=¨normal¨»D«/mi»«mprescripts/»«mn»38«/mn»«mrow/»«/mmultiscripts»«mo»-«/mo»«mo»(«/mo»«mi»III«/mi»«mo»)«/mo»«/mrow»«/mstyle»«/math»" height="18" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -6px;" width="58" />&nbsp;

Perhatikan tabel berikut!

<img alt="" src="https://imgix2.ruangguru.com/assets/miscellaneous/png_ul3xdv_5001.PNG" style="width: 211px; height: 156px;" />&nbsp;

Pasangan atom dan konfigurasi elektronnya yang tepat adalah ....

elektron valensi pada atom Q lebih besar dari atom R<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jumlah elektron di kulit N pada atom Q dan R&nbsp;sama<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jumlah elektron di kulit N pada atom P lebih besar dari atom Q dan R<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

terdapat lima kulit atom pada atom S<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jumlah kulit atom pada atom R paling besar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Perhatikan atom-atom berikut!

<img align="middle" alt="begin mathsize 14px style 1. space P presubscript 41 presuperscript 93
2. space Q presubscript 47 presuperscript 108
3. space R presubscript 52 presuperscript 128
4. space S presubscript 36 presuperscript 64 end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mn»1«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»P«/mi»«mprescripts/»«mn»41«/mn»«mn»93«/mn»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»2«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»Q«/mi»«mprescripts/»«mn»47«/mn»«mn»108«/mn»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»3«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»R«/mi»«mprescripts/»«mn»52«/mn»«mn»128«/mn»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»4«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»S«/mi»«mprescripts/»«mn»36«/mn»«mn»64«/mn»«/mmultiscripts»«/mrow»«/mstyle»«/math»" data-latex="\style{font-size:14px}{1.\;{}_{41}^{93}\mathrm P\\2.\;{}_{47}^{108}\mathrm Q\\3.\;{}_{52}^{128}\mathrm R\\4.\;{}_{36}^{64}\mathrm S}" height="104" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -52px;" width="47" />&nbsp;

Berikut ini pernyataan yang benar mengenai keempat atom tersebut adalah ....

1, 2, dan 3 SAJA yang benar.<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAGCAYAAADkOT91AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKAHAAAAZgABtw7B6wAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none;" />&nbsp;

1 dan 3 SAJA yang benar.<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAGCAYAAADkOT91AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKAHAAAAZgABtw7B6wAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none;" />&nbsp;

2 dan 4 SAJA yang benar.<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAGCAYAAADkOT91AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKAHAAAAZgABtw7B6wAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none;" />&nbsp;

HANYA 4 yang benar.<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAGCAYAAADkOT91AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKAHAAAAZgABtw7B6wAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none;" />&nbsp;

SEMUA pilihan benar.<img align="middle" alt="space" class="Wirisformula" data-custom-editor="chemistry" data-latex="\;" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAGCAYAAADkOT91AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKAHAAAAZgABtw7B6wAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none;" />&nbsp;

Perhatikan persamaan reaksi fisi berikut! 
&nbsp;

<img align="middle" alt="U presubscript 92 presuperscript 235 and n presubscript 0 presuperscript 1 yields Cs presubscript 55 presuperscript 144 and Rb presubscript 37 presuperscript 90 and 2 n presubscript 0 presuperscript 1" class="Wirisformula" data-custom-editor="chemistry" data-latex="{}_{92}^{235}\mathrm U+{}_0^1\mathrm n\rightarrow{}_{55}^{144}\mathrm{Cs}+{}_{37}^{90}\mathrm{Rb}+2{}_0^1\mathrm n" data-mathml="«math class=¨wrs_chemistry¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mmultiscripts»«mi mathvariant=¨normal¨»U«/mi»«mprescripts/»«mn»92«/mn»«mn»235«/mn»«/mmultiscripts»«mo»+«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»n«/mi»«mprescripts/»«mn»0«/mn»«mn»1«/mn»«/mmultiscripts»«mo»§#8594;«/mo»«mmultiscripts»«mi»Cs«/mi»«mprescripts/»«mn»55«/mn»«mn»144«/mn»«/mmultiscripts»«mo»+«/mo»«mmultiscripts»«mi»Rb«/mi»«mprescripts/»«mn»37«/mn»«mn»90«/mn»«/mmultiscripts»«mo»+«/mo»«mn»2«/mn»«mmultiscripts»«mi mathvariant=¨normal¨»n«/mi»«mprescripts/»«mn»0«/mn»«mn»1«/mn»«/mmultiscripts»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;

 
Jika partikel neutron (n) berenergi tinggi ditembakkan ke atom uranium, akan terbentuk atom jenis baru, yaitu sesium dan rubidium. Pernyataan berikut yang benar adalah ...

<ol>
	<li style="text-align: justify;">Konfigurasi elektron sesium = 2, 8, 18, 18, 1</li>
	<li style="text-align: justify;">Konfigurasi elektron rubidium = 2, 8, 18, 8, 1</li>
	<li style="text-align: justify;">Jumlah neutron pada atom sesium dan rubidium secara berurutan adalah 53 dan 89.</li>
	<li style="text-align: justify;">Elektron valensi dari atom sesium dan rubidium adalah sama.</li>
</ol>

jika jawaban 1, 2, dan 3 benar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jika jawaban 1 dan 3&nbsp;benar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jika jawaban 2 dan 4&nbsp;benar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jika jawaban 4 saja yang benar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

jika semua jawaban 1, 2, 3, dan 4 benar<img align="middle" alt="undefined" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mo»§#160;«/mo»«/math»" height="5" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAFCAYAAABirU3bAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAEx0lWhwAAAAxJREFUeNpjYKABAAAAVQAB8vOvGAAAAGR0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIiBjbGFzcz0id3JzX2NoZW1pc3RyeSI+PG1vPiYjeEEwOzwvbW8+PC9tYXRoPjXNO/4AAAAASUVORK5CYII=" style="max-width: none; vertical-align: -1px;" width="4" />&nbsp;

Atom X memiliki konfigurasi elektron, yaitu

K = 2, L = 8, M = 18, N = 8, O = 2.

Jika salah satu isotop dari atom X memiliki nomor massa 88, isotop tersebut berisoton dengan atom-atom berikut.

<img align="middle" alt="begin mathsize 14px style 1. space Y presubscript 39 presuperscript 89
2. space Zr presubscript 40 presuperscript 90
3. space Rh presubscript 45 presuperscript 95
4. space Ag presubscript 47 presuperscript 107 end style" class="Wirisformula" data-custom-editor="chemistry" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨ class=¨wrs_chemistry¨»«mstyle mathsize=¨14px¨»«mrow»«mn»1«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi mathvariant=¨normal¨»Y«/mi»«mprescripts/»«mn»39«/mn»«mn»89«/mn»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»2«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi»Zr«/mi»«mprescripts/»«mn»40«/mn»«mn»90«/mn»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»3«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi»Rh«/mi»«mprescripts/»«mn»45«/mn»«mn»95«/mn»«/mmultiscripts»«mspace linebreak=¨newline¨/»«mn»4«/mn»«mo».«/mo»«mo»§#160;«/mo»«mmultiscripts»«mi»Ag«/mi»«mprescripts/»«mn»47«/mn»«mn»107«/mn»«/mmultiscripts»«/mrow»«/mstyle»«/math»" data-latex="\style{font-size:14px}{1.\;{}_{39}^{89}\mathrm Y\\2.\;{}_{40}^{90}\mathrm{Zr}\\3.\;{}_{45}^{95}\mathrm{Rh}\\4.\;{}_{47}^{107}\mathrm{Ag}}" height="104" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -52px;" width="55" />&nbsp;

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