VSEPR

Front

What is VSEPR theory?

Back

VSEPR (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 does VSEPR stand for?

Back

VSEPR stands for Valence Shell Electron Pair Repulsion.

Front

What is the basic principle of VSEPR theory?

Back

The basic principle of VSEPR theory is that electron pairs around a central atom will arrange themselves as far apart as possible to minimize repulsion.

Front

What is the molecular geometry of CH₄?

Back

The molecular geometry of CH₄ (methane) is tetrahedral.

Front

What is the molecular geometry of CO₂?

Back

The molecular geometry of CO₂ (carbon dioxide) is linear.

Front

What is the molecular geometry of H₂O?

Back

The molecular geometry of H₂O (water) is bent or angular.

Front

What is the molecular geometry of NH₃?

Back

The molecular geometry of NH₃ (ammonia) is trigonal pyramidal.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs occupy more space than bonding pairs, which can distort the bond angles and change the molecular geometry.

Front

What is the bond angle in a tetrahedral molecule?

Back

The bond angle in a tetrahedral molecule is approximately 109.5 degrees.

Front

What is the bond angle in a trigonal planar molecule?

Back

The bond angle in a trigonal planar molecule is 120 degrees.