Answers section

Questions 3.4(b)

Draw dot and cross energy level diagrams to represent the covalent bonds in the following cases.

1. Oxygen, O2
2. Water, H2O
3. Ammonia, NH3
4. Carbon (IV) oxide, CO2
   (O = 8; H = 1; N = 7; C = 6).

The figures in brackets are atomic numbers. Show the outer energy levels only to simplify the diagrams.





Answers to Questions 3.4(b)