We’re being asked to identify the molecule with bond angles nearest to 120°.
Electron Regions Electronic Geometry Bond Angles
2 linear 180˚
3 trigonal planar 120˚
4 tetrahedral 109.5˚
5 trigonal bipyramidal 90˚, 120˚, and 180˚
6 octahedral 90˚ and 180˚
Step 1: The total number of valence electrons present in O = C = S
Group Valence Electrons
C 4A 1 × 4 e– = 4 e–
O 6A 1 × 6 e– = 6 e–
S 6A 1 × 6 e– = 6 e–
Total: 16 valence e–
Step 2: Lewis Structure
Select the compound that has bond angles nearest to 120°.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Bond Angles concept. You can view video lessons to learn Bond Angles. Or if you need more Bond Angles practice, you can also practice Bond Angles practice problems.
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Based on our data, we think this problem is relevant for Professor Cohen-Fray's class at UTOLEDO.