Introduction  The Model (VSEPR)  Examples 
Number of
Groups 
Basic Shape (click
links below to see examples)

SubShapes A = central atom X = atom attached to central atom E = nonbonding electron group on central atom 

Diatomic
(any number) 
Linear Diatomic 
Generic Formula AX 
Shape Name (this refers to the atom arrangement, ignoring the lone pairs) Linear 
2 
Linear
Triatomic 
AX_{2} 
Linear 
3 
Trigonal
Planar 
AX_{3} AX_{2}E 
Trigonal
Planar Bent 
4 
Tetrahedral 
AX_{4} AX_{3}E AX_{2}E_{2} 
Tetrahedral Trigonal Pyramidal Bent 
5 
Trigonal
Bipyramidal 
AX_{5} AX_{4}E AX_{3}E_{2} AX_{2}E_{3} 
Trigonal
Bipyramidal Seesaw Tshaped Linear 
6 Last Table Update:
November 18, 2016
Expires:  J. Gutow 
Octahedral 
AX_{6} AX_{5}E AX_{4}E_{2} _{} 
Octahedral Square Pyramidal Square Planar 