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 is the molecular shape of a molecule with 2 bonding pairs and 0 lone pairs?

Back

Linear.

Front

What is the molecular shape of a molecule with 3 bonding pairs and 0 lone pairs?

Back

Trigonal planar.

Front

What is the molecular shape of a molecule with 3 bonding pairs and 1 lone pair?

Back

Trigonal pyramidal.

Front

What is the molecular shape of a molecule with 2 bonding pairs and 1 lone pair?

Back

Bent.

Front

What is the molecular shape of a molecule with 4 bonding pairs and 0 lone pairs?

Back

Tetrahedral.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs occupy more space than bonding pairs, causing bond angles to decrease and altering the overall shape of the molecule.

Front

What is the bond angle in a linear molecular shape?

Back

180 degrees.

Front

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

Back

120 degrees.

Front

What is the bond angle in a tetrahedral molecular shape?

Back

109.5 degrees.