AB2
2
0
linear
linear
Class
# of
atoms
bonded to
central
atom
#
lone
pairs on central atom
Arrangement of electron pairs
Molecular
Geometry
AB3
3
0
trigonal planar
trigonal planar
AB4
4
0
tetrahedral
tetrahedral
AB5
5
0
trigonal
bipyramidal
trigonal
bipyramidal
VSEPR