VSEPR Theory Practice

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 in the valence shell of the central atom.

Front

What type of bond is formed between selenium (Se) and chlorine (Cl)?

Back

Covalent bond.

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 ammonia (NH3)?

Back

Trigonal pyramidal.

Front

How many lone pairs of electrons are on the phosphorus (P) atom in phosphorus trifluoride (PF3)?

Back

1 lone pair.

Front

What is the molecular geometry of silicon tetrachloride (SiCl4)?

Back

Tetrahedral.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

Approximately 109.5 degrees.

Front

What is the effect of lone pairs on bond angles in molecular geometry?

Back

Lone pairs repel more strongly than bonding pairs, which can reduce bond angles.

Front

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

Back

Bent or angular.