Chem 116 VSEPR Handout
Number of Electron Groups
Electron Group Geometry
Number of Lone Pairs
VSEPR Notation
Molecular Geometry
Ideal Bond Angles
Hybridization
Example
2
linear
0
AX
2
"linear"
180
°
sp
HCN
3
trigonal planar
0
AX
3
"trigonal planar"
120
°
sp
2
BF
3
1
AX
2
E
"bent"
<120
°
sp
2
SO
2
4
tetrahedral
0
AX
4
"tetrahedral"
109.5
°
sp
3
CH
4
1
AX
3
E
"pyramidal"
< 109.5
°
sp
3
NH
3
2
AX
2
E
2
"bent"
< 109.5
°
sp
3
H
2
O
5
trigonal bipyramidal
0
AX
5
"trigonal bipyramidal"
90
°
, 120
°
sp
3
d
PF
5
1
AX
4
E
"see-saw"
< 90
°
, <120
°
sp
3
d
SF
4
2
AX
3
E
2
"T-shaped"
< 90
°
sp
3
d
ClF
3
3
AX
2
E
3
"linear"
180
°
sp
3
d
XeF
2
0
AX
6
"octahedral"
90
°
sp
3
d
2
SF
6
6
octahedral
1
AX
5
E
"square pyramidal"
< 90
°
sp
3
d
2
BrF
5
2
AX
4
E
2
"square planar"
90
°
sp
3
d
2
XeF
4
The number of times this page has been accessed:
Created 01/20/99
Last Modified:
Return to Chem 116 Page
