VSEPR Theory Geometries

Electron-domain geometry for 2 electron domains

Linear

Bond angle for linear geometry

180°

Electron-domain geometry for 3 electron domains

Trigonal planar

Bond angle for trigonal planar

120°

Electron-domain geometry for 4 electron domains

Tetrahedral

Bond angle for tetrahedral

109.5°

Electron-domain geometry for 5 electron domains

Trigonal bipyramidal

Bond angles for trigonal bipyramidal

120° and 90°

Electron-domain geometry for 6 electron domains

Octahedral

Bond angle for octahedral

90°

Molecular geometry with 3 bonding domains and 0 lone pairs (3 regions)

Trigonal planar

Example of trigonal planar molecule (3 bonding, 0 lone pairs)

BF3

Molecular geometry with 2 bonding domains and 1 lone pair (3 regions)

Bent

Example of bent molecule with 3 regions

NO2-

Molecular geometry with 4 bonding domains and 0 lone pairs (4 regions)

Tetrahedral

Example of tetrahedral molecule

CH4

Molecular geometry with 3 bonding domains and 1 lone pair (4 regions)

Trigonal pyramidal

Example of trigonal pyramidal molecule

NH3

Molecular geometry with 2 bonding domains and 2 lone pairs (4 regions)

Bent

Example of bent molecule with 4 regions

H2O

Molecular geometry with 5 bonding domains and 0 lone pairs (5 regions)

Trigonal bipyramidal

Example of trigonal bipyramidal molecule

PCl5

Molecular geometry with 4 bonding domains and 1 lone pair (5 regions)

Seesaw

Example of seesaw molecule

SF4

Molecular geometry with 3 bonding domains and 2 lone pairs (5 regions)

T-shaped

Example of T-shaped molecule

ClF3

Molecular geometry with 2 bonding domains and 3 lone pairs (5 regions)

Linear

Example of linear molecule with 5 regions

XeF2

Molecular geometry with 6 bonding domains and 0 lone pairs (6 regions)

Octahedral

Example of octahedral molecule

SF6

Molecular geometry with 5 bonding domains and 1 lone pair (6 regions)

Square pyramidal

Example of square pyramidal molecule

BrF5

Molecular geometry with 4 bonding domains and 2 lone pairs (6 regions)

Square planar

Example of square planar molecule

XeF4

Electron-domain geometry for 4 regions

Tetrahedral

Electron-domain geometry for CH4

Tetrahedral

Electron-domain geometry for NH3

Tetrahedral

Electron-domain geometry for H2O

Tetrahedral

Electron-domain geometry for 5 regions

Trigonal bipyramidal

Electron-domain geometry for SF4

Trigonal bipyramidal

Electron-domain geometry for ClF3

Trigonal bipyramidal

Electron-domain geometry for XeF2

Trigonal bipyramidal

Electron-domain geometry for 6 regions

Octahedral

Electron-domain geometry for BrF5

Octahedral

Electron-domain geometry for XeF4

Octahedral

Bond angle in NH3 (approx)

107°

Bond angle in H2O (approx)

104.5°

Bond angle in SF4 (approx)

Bond angle in ClF3 (approx)

Bond angle in XeF2

180°

Bond angle in BrF5 (approx)

Bond angle in XeF4

90°

Shape with 2 electron domains and no lone pairs

Linear

Shape with 3 electron domains and no lone pairs

Trigonal planar

Shape with 4 electron domains and no lone pairs

Tetrahedral

Shape with 5 electron domains and no lone pairs

Trigonal bipyramidal

Shape with 6 electron domains and no lone pairs

Octahedral

Shape with 1 lone pair in tetrahedral electron geometry

Trigonal pyramidal

Shape with 2 lone pairs in tetrahedral electron geometry

Bent

Shape with 1 lone pair in trigonal bipyramidal electron geometry

Seesaw

Shape with 2 lone pairs in trigonal bipyramidal electron geometry

T-shaped

Shape with 3 lone pairs in trigonal bipyramidal electron geometry

Linear

Shape with 1 lone pair in octahedral electron geometry

Square pyramidal

Shape with 2 lone pairs in octahedral electron geometry

Square planar

Number of electron domains in CH4

4

Number of electron domains in NH3

4

Number of electron domains in H2O

4

Number of electron domains in PCl5

5

Number of electron domains in SF4

5

Number of electron domains in ClF3

5

Number of electron domains in XeF2

5

Number of electron domains in SF6

6

Number of electron domains in BrF5

6

Number of electron domains in XeF4

6