AP Chemistry VSEPR, Mol Geo, Hybridization

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 is the molecular geometry of a molecule with four bonding pairs and no lone pairs?

Back

Tetrahedral.

Front

What is hybridization?

Back

Hybridization is the concept of mixing atomic orbitals to form new hybrid orbitals that can accommodate the bonding pairs of electrons.

Front

What is the hybridization of a carbon atom in ethylene (C2H4)?

Back

sp² hybridization.

Front

How many sigma bonds are in a single bond?

Back

1 sigma bond.

Front

How many pi bonds are in a double bond?

Back

1 pi bond.

Front

What is the shape of a molecule with two bonding pairs and no lone pairs?

Back

Linear.

Front

What is the shape of a molecule with three bonding pairs and one lone pair?

Back

Trigonal pyramidal.

Front

What is the bond angle in a tetrahedral molecule?

Back

Approximately 109.5 degrees.

Front

What is the bond angle in a trigonal planar molecule?

Back

Approximately 120 degrees.