VSEPR Theory

Front

What is VSEPR Theory?

Back

VSEPR Theory (Valence Shell Electron Pair Repulsion Theory) is a model used to predict the geometry of individual molecules based on the repulsion between the electron pairs in the valence shell of the central atom.

Front

What molecular geometry does a molecule with the formula AB₂ have?

Back

Linear.

Front

What molecular geometry does a molecule with the formula AB₃ have?

Back

Trigonal planar.

Front

What molecular geometry does a molecule with the formula AB₄ have?

Back

Tetrahedral.

Front

What is the molecular shape of CH₄?

Back

Tetrahedral.

Front

What is the molecular shape of NH₃?

Back

Trigonal pyramidal.

Front

What is the molecular shape of H₂O?

Back

Bent.

Front

What is the molecular shape of CO₂?

Back

Linear.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs repel more strongly than bonding pairs, which can alter the expected geometry.

Front

What is the general formula for a trigonal planar shape?

Back

AB₃.