Molecular Geometry Chart
# of Electron
Groups
2
Number of
Lone Pairs
0
Electron Pair
Arrangement
linear
0
trigonal planar
Molecular Geometry
180o
Approximate
Bond Angles
180°
120°
120o
3
1
bent
<120°
<120o
0
tetrahedral
109.5°
109.5o
1
trigonal pyramid
<109.5° (~107°)
<109.5o
4
2
bent
<109.5°(~105°)
<109.5o
0
1
trigonal
bipyramidal
see-saw
90°, 120°
90o
120o
<90°, <120°
<90o
<120o
2
T-structure
3
linear
<90°
<90o
5
180°
180o
0
octahehral
90o
90°, 90°
90o
6
1
square pyramidal
90°, <90°
90o
<90o
2
square planar
90°
90o