VSEPR

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion.

Front

What is the main principle of VSEPR theory?

Back

The shape of a molecule is determined by the repulsion between electron pairs around the central atom.

Front

What shape does a molecule with 4 bonding pairs and no lone pairs have?

Back

Tetrahedral.

Front

What shape does a molecule with 3 bonding pairs and 1 lone pair have?

Back

Trigonal pyramidal.

Front

What shape does a molecule with 2 bonding pairs and 2 lone pairs have?

Back

Bent.

Front

How do lone pairs affect molecular shape?

Back

Lone pairs repel more strongly than bonding pairs, altering the angles between bonded atoms.

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.

Front

What is the bond angle in a linear molecule?

Back

180 degrees.

Front

Which molecule has a trigonal planar shape?

Back

BF3 (Boron Trifluoride).