Chemistry 120 Handouts/Notes

Chemistry 120 Molecular Geometry
Molecular Geometry
AX m E n
Code
Approximate Bond
Angles (degrees)
Hybridization
of Central Atom
2-dimensional
Representation
3-dimensional
Representation
X
X
Trigonal Bipyramid AX 5 90 & 120 dsp 3 X
A
X X
X
X
A
X
X
X
X
See-saw AX 4 E 1 90 &120 dsp 3 X A
X X
X
A
X
X
X
X
X A
T-shaped AX 3 E 2 90 dsp 3
X
X
A
X
X
X
Linear AX 2 E 3 180 dsp 3 X A X A
X
Note: None of the shapes on pages 2 or 3 of this handout will be tested in CHEM 120, as they all have central atoms which exceed an octet.
These are included to assist you in your later studies in General Chemistry.
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