More Chemical Bonds notes
1. What is an element?  What is a compound?  Give synonyms for these terms.

 
 
 
 

2. What is electronegativity?  Describe (or draw) the trend of increasing electronegativity across the periodic table.
 
 
 
 
 

3. What determines whether two elements will form a covalent or an ionic bond?  Give an example of compounds with each type of bond.
 
 
 
 

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

5. What are diatomic elements?  List them.
 
 
 
 
 

6. What is the octet rule?
 
 
 
 
 

7. Use electron dot structures to show how atoms combine to form the following molecules.

H2      Cl2

H2O      CO2
 

.8. What does the little 2 represent in H2O?
 
 
 


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