Hybridization and VSEPR

The yellow circles represent lone pairs.

What is the hybridization on the central atom?

What is the hybridization on the central atom?

What is the hybridization on the central atom?

What is the electron geometry?

Which of the following is NOT a factor that VSEPR theory considers to predict the shape of a molecule?

• The number of lone pairs on the central atom

• The number of bonding pairs on the central atom

• The weight of the atoms in the molecule

• The repulsion between electron pairs

In VSEPR theory, what do lone pairs of electrons do to the shape of a molecule?

• They do not affect the shape.

• They make the molecule larger.

• They push bonding pairs closer together.

• They pull bonding pairs further apart.

In a trigonal pyramidal molecule, how many bonding pairs and lone pairs are there?

• 3 bonding pairs, 1 lone pair

• 2 bonding pairs, 2 lone pairs

• 4 bonding pairs, 0 lone pairs

• 3 bonding pairs, 0 lone pairs

What is the main idea behind VSEPR theory?

• Electrons and nuclei attract each other.

• Electron pairs repel each other to maximize the distance between them.

• Electrons move in predictable orbits.

• Bonding pairs of electrons are the most stable.

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

• Linear

• Trigonal planar

• Tetrahedral

• Bent

What is the angle between the bonding pairs in a tetrahedral molecule?

• 90°

• 109.5°

• 120°

• 180°