Please print and have available to refer to during Chapter 12

# pairs of e-

on central atom

#pairs e- bonded on central atom

e- geometry

molecular geometry

Ex:

2

2

Linear

Linear

BeH2

2

1

Linear

Linear

N2

3

3

Trigonal Planar

Trigonal Planar

BH3, CO3-2

3

2

Trigonal Planar

Bent

SO2, BrNO

3

1

Trigonal Planar

Linear

 

4

4

Tetrahedral

Tetrahedral

CH4

4

3

Tetrahedral

Trigonal Pyramidal

NH3

4

2

Tetrahedral

Bent

H2O

4

1

Tetrahedral

Linear

 

5

5

Trigonal Bipyramidal

Trigonal Bipyramidal

PF5

5

4

Trigonal Bipyramidal

See-Saw

SF4

5

3

Trigonal Bipyramidal

T-shape

ClF3

5

2

Trigonal Bipyramidal

Linear

I3-

5

1

Trigonal Bipyramidal

Linear

 

6

6

Octahedral

Octahedral

SF6

6

5

Octahedral

Square Pyramidal

BrF5

6

4

Octahedral

Square Planar

XeF4