Electron & Molecular Geometry

AX₂ —> Electron Geometry | Molecular Geometry | Bond angle

Linear | Linear | 180

AX₃ —> Electron Geometry | Molecular Geometry | Bond angle

Trigonal planar | Trigonal planar | 120

AX₂E₁ —> Electron Geometry | Molecular Geometry | Bond angle

Trigonal planar | Bent | <120

AX₄—> Electron Geometry | Molecular Geometry | Bond angle

Tetrahedral | Tetrahedral | 109.5

AX₃E₁—> Electron Geometry | Molecular Geometry | Bond angle

Tetrahedral | Trigonal pyramidal | <109.5

AX₂E₂—> Electron Geometry | Molecular Geometry | Bond angle

Tetrahedral | Bent | 105

AX₅—> Electron Geometry | Molecular Geometry | Bond angle

Trigonal bipyramidal | Trigonal bipyramidal | 90, 120, 180

AX₄E₁—> Electron Geometry | Molecular Geometry | Bond angle

Trigonal bipyramidal | See-saw | 90, 117, 180

AX₃E₂—> Electron Geometry | Molecular Geometry | Bond angle

Trigonal bipyramidal | T-shaped | <90, 180

AX₂E₃—> Electron Geometry | Molecular Geometry | Bond angle

Trigonal bipyramidal | Linear | 180

AX₆—> Electron Geometry | Molecular Geometry | Bond angle

Octahedral | Octahedral | 90, 180

AX₅E₁—> Electron Geometry | Molecular Geometry | Bond angle

Octahedral | Square pyramidal | 90, <90

AX₄E₂—> Electron Geometry | Molecular Geometry | Bond angle

Octahedral | Square planar | 90

A in AXE Notation

Central atom

X in AXE Notation

# atoms bonded to central atom

E in AXE Notation

# lone pairs on central atom

Electron Geometry vs. Molecular Geometry

Includes bonds and lone pairs | Describes only arrangement of atoms

Double and triple bonds each count as ___ electron group

One

General repulsion strength

LP-LP > LP-BP > BP-BP