Molecule shapes

Linear (3)

1 bonding pair

1 region of electron density

H₂

Linear: Drawing (2)

Straight line between the two atoms

Bonding angle of 180

Linear 2 (3)

2 bonding pairs

2 regions of electron density

CO₂

Linear 2: Drawing (2)

2 straight lines stemming from the central atom

Bonding angle of 180

Trigonal Planar (3)

3 bonding pairs

3 regions of electron density

BF₃

Trigonal Planar: Drawing (2)

One atom on the same plane as the central atom, one coming outwards and one going inwards

Bonding angle of 120

Non-linear (Bent) (3)

2 bonding pairs + 2 lone pairs

4 regions of electron density

H₂O

Non-linear (bent) shape (2)

Two atoms bonded to the central atom on bent lines

Bond angle of 104.5

Pyramidal (3)

3 bonding pairs + 1 lone pair

4 regions of electron density

NH₃

Pyramidal: Drawing (2)

One atom on the same plane as the central atom, one atom going inwards and one coming outwards

Bond angle of 107

Tetrahedral (3)

4 bonding pairs

4 regions of electron density

CH₄

Tetrahedral: Drawing (2)

2 atoms on the same plane as the the central atom and one atom going inwards

Bonding angle of 109.5

Trigonal bipyramid (3)

5 bonding pairs

5 regions of electron density

PCl₅

Trigonal bipyramid: Shape (2)

2 atoms on the same plane as the central atom, one atom going inwards and one coming outwards

Bonding angles of 90 and 120

Octahedral (3)

6 bonding pairs

6 regions of electron density

SF₆

Octahedral: Drawing (2)

Two atoms on the same plane as the central atom, 2 going inwards and 2 going outwards

Bond angle of 90