VSEPR Theory for Molecules

2 ED with 0 LEP

ED geometry: linear

Molecular geometry: linear

Bond angle: 180°

Example: CO₂

3 ED with 0 LEP

ED geometry: trigonal planar

Molecular geometry: trigonal planar

Bond angle: 120°

Example: H₂CO

3 ED with 1 LEP

ED geometry: trigonal planar

Molecular geometry: bent/angular

Bond angle: 117°

Example: SO₂

4 ED with 0 LEP

ED geometry: tetrahedral

Molecular geometry: tetrahedral

Bond angle: 109.5°

Example: CH₄

4 ED with 1 LEP

ED geometry: tetrahedral

Molecular geometry: trigonal pyramidal

Bond angle: 107°

Example: NH₃

4 ED with 2 LEP

ED geometry: tetrahedral

Molecular geometry: bent/angular

Bond angle: 104.5°

Example: H₂O

5 ED with 0 LEP

ED geometry: trigonal bipyramidal

Molecular geometry: trigonal bipyramidal

Bond angle: 90°, 120°

Example: PH₅

5 ED with 1 LEP

ED geometry: trigonal bipyramidal

Molecular geometry: see saw

Bond angle: 90°, <120°, <180°

Example: SF₄

5 ED with 2 LEP

ED geometry: trigonal bipyramidal

Molecular geometry: T-shaped

Bond angle: <90°

Example: IF₃

5 ED with 3 LEP

ED geometry: trigonal bipyramidal

Molecular geometry: linear

Bond angle: 180°

Example: XeF₂

6 ED with 0 LEP

ED geometry: octahedral

Molecular geometry: octahedral

Bond angle: 90°

Example: SF₆

6 ED with 1 LEP

ED geometry: octahedral

Molecular geometry: square pyramidal

Bond angle: <90°

Example: IF₅

6 ED with 2 LEP

ED geometry: octahedral

Molecular geometry: square planar

Bond angle: 90°

Example: XeF₄