Molecular Geometry

AP CHEM

Linear

2 atoms attached to centre molecule

180 degrees

0 lone pairs

Bent

2 atoms attached to center

<120 degrees

1 lone pair

Bent, «109.5

2 atoms on center

2 lone pairs

Trigonal planar

3 atoms on center

120 degrees

0 lone pairs

Trigonal pyramidal

3 atoms on center

<109.5 degrees

1 lone pair

T-shaped

3 atoms on center

< 90 degrees

2 lone pairs

Tetrahedral

4 atoms on center

109.5 degrees

0 lone pairs

Seesaw

4 atoms on center

<120 and <90 degrees

1 lone pair

Trigonal bipyramidal

5 atoms on center

120 and 90 degrees

0 lone pairs

Octahedral

6 atoms on center

90 degrees

0 lone pairs

Square pyramidal

5 atoms on center

<90 degrees

1 lone pair

Square planar

4 atoms on center

90 degrees

2 lone pairs