VSEPR PreAP

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 surrounding their central atoms.

Front

What molecular geometry is associated with 3 bonds and 1 lone pair?

Back

Trigonal pyramidal.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

109.5 Degrees.

Front

Define a lone pair of electrons.

Back

A lone pair is a pair of non-bonding electrons located on the central atom of a molecule.

Front

Which molecule has a linear geometry?

Back

CO2 (Carbon Dioxide).

Front

What is the electron geometry of a molecule with 2 bonds and 1 lone pair?

Back

Trigonal planar.

Front

What molecular geometry corresponds to 4 bonds and no lone pairs?

Back

Tetrahedral.

Front

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

Back

120 Degrees.

Front

How does a lone pair affect molecular geometry?

Back

Lone pairs occupy space and repel bonding pairs, altering the geometry of the molecule.

Front

What is the molecular geometry of CH4 (Methane)?

Back

Tetrahedral.