Molecular Shape - VSEPR

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion.

Front

According to VSEPR theory, what is the primary reason atoms and unshared pairs orient themselves in a molecule?

Back

To be as far apart as possible.

Front

What is the molecular geometry of H₂S?

Back

Bent.

Front

What is the effect of electron pairs on each other according to VSEPR theory?

Back

They repel each other.

Front

Define a lone pair in the context of molecular geometry.

Back

A pair of non-bonding electrons.

Front

According to VSEPR theory, what do molecules adjust their shapes to minimize?

Back

The repulsion between pairs of valence electrons.

Front

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

Back

Tetrahedral.

Front

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

Back

120 degrees.

Front

How does the presence of lone pairs affect bond angles in a molecule?

Back

Lone pairs take up more space and can compress bond angles between bonding pairs.

Front

What is the molecular geometry of a molecule with two bonding pairs and one lone pair?

Back

Bent.