1. Do all molecules obey the octet rule? If No, give at least three examples of molecules that do not obey the octet rule/exceptions to the octet rule.

2. What is the difference between electron-domain geometry and molecular geometry of a molecule? Give examples.

3. Discuss how “Bond dipoles” in molecules can be used to determine polarity in molecules. (Note: Clear illustration MUST be used to explain this).

4. Discuss the following about the following molecules:

TeCl2:

Describe the molecular geometry of the whole molecule

Polarity of the whole molecule

Hybridization of the central atom (Te)

PBr5:

Describe the molecular geometry of the whole molecule

  Hybridization of the central atom (P)

NH4+:

Describe the molecular geometry of the whole molecule

Describe the polarity of the whole molecule

Hybridization of the central atom (N)