Answer to Question #201237 in Inorganic Chemistry for someone

Question

Name the following polyatomic ions and state which rules were used to name them:

a. ClO2–      

b.  SO22-     

Answer 1

Rule 1. The cation is written first in the name; the anion (takes electrons) is written second in the name. Rule 2. When the formula unit contains two or more of the same polyatomic ion, that ion is written in parentheses with the subscript written outside the parentheses.

a) Chlorine dioxide

b) Sulphite