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 a lone pair refer to in VSEPR theory?

Back

A lone pair refers to a pair of non-bonding electrons that are localized on the central atom and do not participate in bonding.

Front

What is the primary purpose of VSEPR theory?

Back

The primary purpose of VSEPR theory is to predict the molecular shape of a molecule based on the arrangement of electron pairs around the central atom.

Front

What molecular shape does a molecule with four bonding pairs and no lone pairs have?

Back

Tetrahedral.

Front

What molecular shape is associated with two bonding pairs and one lone pair?

Back

Bent.

Front

What is the molecular geometry of BF3?

Back

Trigonal planar.

Front

How does the presence of lone pairs affect molecular shape?

Back

Lone pairs repel more strongly than bonding pairs, which can alter the angles between bonding pairs and change the overall shape of the molecule.

Front

What is the molecular shape of CO2?

Back

Linear.

Front

What is the bond angle in a trigonal planar molecule?

Back

120 degrees.

Front

What molecular shape is formed when there are five bonding pairs and no lone pairs?

Back

Trigonal bipyramidal.