VSEPR Review

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion

Front

What is the main principle of VSEPR theory?

Back

Molecular shapes are determined by the repulsion between electron pairs around a central atom.

Front

What is the molecular geometry of CH₄?

Back

Tetrahedral

Front

What is the molecular geometry of H₂O?

Back

Bent (or V-shaped) due to two lone pairs on the oxygen atom.

Front

What is the molecular geometry of CO₂?

Back

Linear.

Front

What is the molecular geometry of BF₃?

Back

Trigonal planar.

Front

How many lone pairs of electrons are on the central atom in NH₃?

Back

1 lone pair.

Front

What is the effect of lone pairs on molecular geometry?

Back

Lone pairs repel more strongly than bonding pairs, affecting the shape.

Front

What is the molecular geometry of PCl₅?

Back

Trigonal bipyramidal.

Front

How many bonding pairs and lone pairs are in water (H₂O)?

Back

2 bonding pairs and 2 lone pairs.