8.4 Electron Domain Geometry and Molecular Geometry

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Chad's High School Chemistry Master Course

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VSEPR Theory (Valence Shell Electron Pair Repulsion)

Electron pairs, being negatively charged, repel each other to be as far apart as possible around the central atom.

Electron Domains Electron Domain Geometry Bond Angles
2 Linear 180°
3 Trigonal Planar 120°
4 Tetrahedral 109.5°
molecular and electron geometry chart

*Lone pairs of electrons reduce bond angles slightly.

Provide electron domain and molecular geometries for the following:

electron domain