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7 terms

Molecule shapes and bond angles

STUDY
PLAY
Trigonal planar
-3 bonding pairs.
-120°
Tetrahedral
-4 bonding pairs.
-109.5°
Octahedral
-6 bonding pairs.
-90°
Linear
-2 bonding regions.
-180°
Non-linear
-2 Bonding pairs.
-2 lone pairs.
-104.5°
Pyramidal
-3 bonding pairs.
-1 lone pair.
-107°
Effect of lone pairs
-Each lone pair reduces the bond angle by about 2.5°