How do you determine the oxidation number of nitrogen in the nitrate ion?
You use the rules for oxidation numbers to calculate that the oxidation number of
The important rules here are:
- The oxidation number of oxygen in a compound is usually -2, except in peroxides, where it is -1.
- The sum of all the oxidation numbers in a polyatomic ion is equal to the charge on the ion.
The formula of nitrate ion is
Rule 1 tells us that the oxidation number of
Rule 2 tells us that the sum of all the oxidation numbers equals the charge on the ion.
∴ The oxidation number of