AP Chemistry Unit 2 VSEPR

Notes to try to remember the different hybridizations / geometries! Use the "answer with definition" mode.

Hybridization of Linear (2):

sp

Hybridization of Trigonal Planar (3):

sp2

Hybridization of Tetrahedral (4):

sp3

Hybridization of Trigonal Bipyramidal (5):

sp3d

Hybridization of Octahedral

sp3d2

Name of Trigonal Planar with 1 lone pair:

Bent

Name of Tetrahedral with 1 lone pair:

Trigonal Pyramidal

Name of Tetrahedral with 2 lone pairs:

Bent

Name of Trigonal Bipyramidal with 1 lone pair

see saw

Name of Trigonal Bipyramidal with 2 lone pairs:

T-shaped

Name of Trigonal Bipyramidal with 3 lone pairs:

Linear

Name of Octahedral with 1 lone pair:

Square pyramidal

Name of Octahedral with 2 lone pairs:

Square planar

Angle between molecules with a Trigonal Planar geometry

120

Angle between molecules with a Bent Trigonal Planar Geometry

<120

Angle between molecules with a Tetrahedral geometry

109.5

Angle between molecules with a Trigonal Pyramidal or Bent Tetrahedral geometry

<109.5

Angle between molecules with a Trigonal Bipyramidal or See-Saw geometry (list the axis to equatorial molecule angle first, then the angle between equatorial molecules)

90, 120

Angle between molecules with a T-Shaped geometry

90

Angle between molecules with a linear geometry (includes Trigonal Bipyramidal with 3 lone pairs)

180

Angle between molecules with a Octahedral, Square Pyramidal, or Square Planar geometry

90