1.4 Bonding angle and molecule shape

learn the bond angle and molecule shape.

Linear

• 180º

• 2 bonding pairs

Trigonal Planar

• 120º

• Three bonding pairs only around central atom.

Tetrahedral

109.5º

four bonding pairs around central atom

Bi pyramidal

• 120º/90º

• Five bonding pairs around central atom

Octahedral

• 90º

• 6 bonding pairs

Pyramidal

• 107º

• 1 lone pair and 3 bonding pairs

non linear/bent

• 104.5º

• two lone pairs and two bonding pairs.

How many degrees do you take off if there is a lone pair

2.5º per lone pair.