VSEPR & Covalent Compounds

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion.

Front

What is the basic principle of VSEPR theory?

Back

The shape of a molecule is determined by the repulsion between electron pairs in the valence shell.

Front

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

Back

Linear.

Front

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

Back

Trigonal planar.

Front

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

Back

Tetrahedral.

Front

What is the molecular shape of a water molecule (H2O)?

Back

Bent (or Tetrahedral Bent).

Front

How many lone pairs are present in a water molecule?

Back

Two lone pairs.

Front

What is the molecular shape of carbon tetrafluoride (CF4)?

Back

Tetrahedral.

Front

What is the significance of lone pairs in determining molecular shape?

Back

Lone pairs occupy space and can affect the angles between bonding pairs.

Front

What is the molecular shape of a molecule with one central atom bonded to two other atoms and one lone pair?

Back

Bent.