Question

How to find valency of nitrate?​

Answer 1

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Nitrate ion (NO3) has one Nitrogen and three Oxygen atoms. Oxygen lies in group 16 and thus has a valency of -2. Nitrogen lies in the group 15 and has a charge of +5 forming the bond with three oxygen atoms. So if you add the valency of all the atoms, you get the answer as -1.

Answer 2

Explanation:

Nitrate ion (NO3) has one Nitrogen and three Oxygen atoms. Oxygen lies in group 16 and thus has a valency of -2. Nitrogen lies in the group 15 and has a charge of +5 forming the bond with three oxygen atoms. So if you add the valency of all the atoms, you get the answer as -1.