"Effective Pairs"
Lone pairs
Example
angles
or bent
or bent
| # of "Effective Pairs" | # of Lone pairs | Geometry | Shape | Lewis Structure Example | 3d model | bond angles |
|---|---|---|---|---|---|---|
| 2 | 0 | Linear | Linear | 180 | ||
| 3 | 0 | Trigonal planar | Trigonal planar | 120 | ||
| 3 | 1 | Trigonal planar | V-shape or bent | 120 | ||
| 4 | 0 | Tetrahedral | Tetrahedral | 109.5 | ||
| 4 | 1 | Tetrahedral | Trigonal pyramid | 107 | ||
| 4 | 2 | Tetrahedral | V-shape or bent | 104.5 | ||
| 4 | 3 | Tetrahedral | Linear | 180 |
