Valence Bond Theory and VSEPR

Question 1

Lewis Model deficiencies

Answer 1

• doesn’t account for shape of molecules
• doesn’t account for how bonding occurs
• Hypervalency and electron deficiency
• coordination chemistry in the d- and f- block
• paramagnetism

Question 2

Paramagnetism

Answer 2

Relies on unpaired electrons

Question 3

Polarity

Answer 3

Polarity is based on electronegativity and shape of the molecule

Question 4

Valence Bond Theory

Answer 4

The idea that valence atomic orbitals combine or interact to form chemical bonds

Question 5

Resonance

Answer 5

allow us to show where electrons sit in a molecule

-Resonance structures do not exist on their own
- they do not interchange or exist in equilibrium
- the true nature of a bond is a mixture of the resonant forms