vsepr models

AX2: e- group geometry

linear

AX2: molecular geometry

linear

AX2: bond angle

180

AX3: e- group geometry

trigonal planar

AX3: molecular geometry

trigonal planar

AX3: bond angle

120

AX2E: e- group geometry

trigonal planar

AX2E: molecular geometry

bent

AX2E: bond angles

near lone pair: >120

between other atoms: <120

AX4: e- group geometry

tetrahedral

AX4: molecular geometry

tetrahedral

AX4: bond angle

109.5

AX3E: e- group geometry

tetrahedral

AX3E: molecular gometry

trigonal pyramidal

AX3E: bond angles

y-axis: >109.5

x-axis: <109.5

AX2E2: e- group geometry

tetrahedral

AX2E2: molecular geometry

bent

AX2E2: bond angles

y-axis: >109.5
x-axis: <109.5

AX5: e- group geometry

trigonal bipyramidal

AX5: molecular geometry

trigonal bipyramidal

AX5: bond angles

y-axis: 90

x: axis: 120

AX4E: e- group geometry

trigonal bipyramidal

AX4E: molecular geometry

seesaw

AX4E: bond angles

y-axis: >90

x-axis: 120

AX3E2: e- group geometry

trigonal bipyramidal

AX3E2: molecular geometry

t-shaped

AX3E2: bond angles

y-axis: 90

x-axis, near lone pair: > 120

AX2E3: e- group geometry

trigonal bipyramidal

AX2E3: molecular geometry

linear

AX2E3: bond angles

y-axis: 90

x-axis: 120

AX6: e- group geometry

octahedral

AX6: molecular geometry

octahedral

AX6: bond angles

y-axis: 90

x-axis: 90

AX5E: e- group geometry

octahedral

AX5E: molecular geometry

square pyramidal

AX5E: bond angles

y-axis: 90

x-axis: 90`

AX4E2: e- group geometry

octahedral

AX4E2: molecular geometry

square planar

AX4E2: bond angles

y-axis: 90

x-axis: 90

equatorial position

along the x-axis

axial position

along the y-axis

are ax-eq bonds or eq-eq repulsions weaker?

eq-eq repulsions are weaker

which position do lone pairs tend to be in?

equatorial positions