Molecular Geometry

The rules and patterns for memorizing molecular geometry of molecules.

Linear

2 bonds, 0 lone pairs, 180-degree bond angle, sp

Bent

2 bonds, 1 lone pair, 120-bond angle, sp2

Trigonal planar

3 bonds, 0 lone pairs, 120-degree bond angle, sp2

Tetrahedral

4 bonds, 0 lone pairs, 109.5-degree bond angle, sp3

Trigonal Pyramidal

3 bonds, 1 lone pair, 107-degree bond angle, sp3

Trigonal Bi-pyramdial

5 bonds, 0 lone pairs, 90-degree and 120-degree bond angles, sp3d

Octahedral

6 bonds, 0 lone pairs, 90-degree bond angles, sp3d2

Square planar

4 bonds, 2 lone pairs, 90-degree bond angles, sp3d2

See-saw

4 bonds, 1 lone pair, 90-degree and 120-degree bond angles, sp3d

T-shaped

3 bonds, 2 lone pairs, 90-degree and 180-degree bond angles, sp3d

Square pyramidal

5 bonds, 1 lone pair, 90-degree and 180-degree bond angles, sp3d