객관식
How many single bonds are present in the Lewis dot structure of germanium disulfide (GeS2)?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
Multiple Choice
In the Lewis structure of CH4 (methane), how many electron groups are around the central carbon atom?
A
5
B
3
C
2
D
4
검증된 단계별 안내1
Identify the central atom in the molecule CH4, which is carbon (C).
Recall that an electron group around an atom includes bonded atoms (single, double, or triple bonds) and lone pairs of electrons on that atom.
In methane (CH4), carbon forms four single covalent bonds with four hydrogen atoms.
Since there are no lone pairs on the carbon atom, each bond counts as one electron group.
Therefore, the total number of electron groups around the central carbon atom is 4.
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