객관식
After drawing the Lewis structure of dichlorodifluoromethane (CCl2F2), what is the molecular shape around the central carbon atom?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
객관식
Which of the following best describes the Lewis dot structure for a neutral potassium atom (K)?
A
K with one dot representing a single valence electron
B
K with seven dots representing seven valence electrons
C
K with eight dots arranged around the symbol
D
K with no dots, indicating no valence electrons
검증된 단계별 안내1
Recall that the Lewis dot structure represents the valence electrons of an atom, which are the electrons in the outermost shell.
Determine the group number of potassium (K) in the periodic table. Potassium is in Group 1, which means it has one valence electron.
Represent the potassium atom symbol 'K' and place one dot around it to indicate its single valence electron.
Understand that the other options with seven or eight dots correspond to elements with more valence electrons, which does not apply to potassium.
Conclude that the correct Lewis dot structure for a neutral potassium atom is 'K' with one dot representing its single valence electron.
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