1.9 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 is the bond angle in a trigonal planar molecule?

Back

120 Degrees.

Front

Which molecule has a trigonal planar shape?

Back

BF3 (Boron Trifluoride).

Front

What is the bond angle in a tetrahedral molecule?

Back

109.5 Degrees.

Front

Which molecule has a tetrahedral shape?

Back

CH4 (Methane).

Front

Define polar molecule.

Back

A polar molecule is one that has a net dipole moment due to the presence of polar bonds that do not cancel each other out.

Front

Define nonpolar molecule.

Back

A nonpolar molecule is one that does not have a net dipole moment, often due to symmetrical distribution of charge.

Front

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

Back

Tetrahedral.

Front

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

Back

Trigonal pyramidal.

Front

What is the shape of a molecule with two bonding pairs and two lone pairs?

Back

Bent.