Understanding Lone Pairs and Molecular Geometry

What is the main difference between electron geometry and molecular geometry?

• Electron geometry includes lone pairs, while molecular geometry does not.

• Molecular geometry includes lone pairs, while electron geometry does not.

• Neither geometry includes lone pairs.

• Both geometries include lone pairs.

If a central atom has three electron groups and one is a lone pair, what is the molecular geometry called?

• Bent

• Tetrahedral

• Linear

• Trigonal planar

What is the bond angle in a trigonal planar molecular geometry?

• 180°

• 90°

• 120°

• 109.5°

In a tetrahedral electron geometry with one lone pair, what is the molecular geometry called?

• Square planar

• Linear

• Bent

• Trigonal pyramidal

What is the bond angle in a tetrahedral molecular geometry?

• 109.5°

• 120°

• 180°

• 90°