Chem Shapes of Molecules

Shape

Regions of electron density

(examples)

Name of shape and bond angle

4

4 bonding

0 non-bonding

e.g. CH₄ and CH₂F₂

Tetrahedral

109°

4

3 bonding

1 non-bonding

e.g. NH₃ and PCl₃

Trigonal pyramidal

109°

4

2 bonding

2 non-bonding

e.g. H₂O and SF₂

Bent (v-shaped)

109°

3

3 bonding

0 non-bonding

e.g.COCl₂

Trigonal planar

120°

3

2 bonding

1 non-bonding

e.g.SO₂ and NOCl

Bent (v-shaped)

120°

2

2 bonding

0 non-bonding

e.g. CO₂ and HCN

Linear

180°