Practice!

Sample Problem

Rank the following bonds in terms of bond strength (1 = strongest bond, 3 = weakest bond)

i. Chlorine and chlorine

ii. Sodium and sodium

iii. Sodium and chlorine

Solution

Chlorine is a nonmetal and forms covalent bonds with itself. Sodium is able to form metallic bonds with itself and ionic bonds with chlorine. Therefore, in terms of bond strength iii>ii>i