Chemical Bonds notes
1. What is electronegativity?  Describe (or draw) the trend of increasing electronegativity across the periodic table.


2. How do you know whether a compound is covalently or ionically bonded?

3. What is a polar covalent bond?  Give an example of a compound with such a bond.

4. What are diatomic elements?  List them.

5. Use electron dot structures (and the octet rule) to show how atoms combine to form the following molecules:

CH4      Br2

H2O      NH3

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