VSEPR + Hybridization

Electron Groups

Bonding Groups

Lone Pairs

Electron Geometry

Molecular Geometry

Approximate Bond Angles

Hybridization

Example

2

2

0

Linear

Linear

180°

sp

3

3

0

Trigonal planar

Trigonal planar

120°

sp2

3

2

1

Trigonal planar

Bent

<120°

sp2

4

4

0

Tetrahedral

Tetrahedral

109.5°

sp3

4

3

1

Tetrahedral

Trigonal pyramidal

<109.5°

sp3

4

2

2

Tetrahedral

Bent

<109.5°

sp3

5

5

0

Trigonal bipyramidal

Trigonal bipyramidal

120° (equatorial) 90° (axial)

sp3d

5

4

1

Trigonal bipyramidal

Seesaw

<120° (equatorial) <90° (axial)

sp3d

5

3

2

Trigonal bipyramidal

T-shaped

<90°

sp3d

5

2

3

Trigonal bipyramidal

Linear

180°

sp3d

6

6

0

Octahedral

Octahedral

90°

sp3d2

6

5

1

Octahedral

Square pyramidal

<90°

sp3d2

6

4

2

Octahedral

Square planar

90°

sp3d2