Valence Shell Electron Pair Repulsion (VSEPR)
SN*
Lone
pairs
Molecular Geometry
Bond
angle
Example
2
0
Linear
180°
H
C
N
0
Linear
C
O
2
3
0
Trigonal planar
120°
H
2
C
O
0
Trigonal planar
C
Cl
2
CCl
2
0
Trigonal planar
C
O
3
-2
1
Angular or bent
O
3
4
0
Tetrahedral
109.5°
C
H
4
0
Tetrahedral
C
H
3
CH
3
0
Tetrahedral
C
H
3
NH
2
0
Tetrahedral
C
H
3
OH
1
Trigonal pyramidal
N
H
3
1
Trigonal pyramidal
CH
3
N
H
2
2
Angular or bent
H
2
O
2
Angular or bent
CH
3
O
H
5
0
Trigonal bipyramidal
120, 180°
P
Cl
5
1
Seesaw
102, 173°
S
F
4
2
T shaped
86, 172°
Br
F
3
3
Linear
180°
I
3
-
3
Linear
180°
Xe
F
2
6
0
Octahedral
90, 180°
S
F
6
1
Square pyramidal
85, 170°
Br
F
5
2
Square planar
90, 180°
Xe
F
4
*Steric number (SN) is atoms plus lone pairs
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Spacefill
Ball&Stick
Ball
Stick
Lines
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Labels:
Small
Medium
Large
Off
Lone Pairs
Multiple bonds
Spin
Antialias
This page created by George Lisensky, Beloit College.
Last modified September 22, 2021.
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