8. Nitrogen (N) belongs to family 5A and it is diatomic. How many nonpolar covalent bonds will there be in N, molecule? C. 3 B. 2 D. 4 A.1 9. Which of the following will have the highest melting temperature? A, sodium chloride (salt) C. sucrose (table sugar) B. paraffin wax (candle wax) D. lead wire