Answer
0
Work Step by Step
The oxidation number of an atom in a neutral free element is always 0. Therefore, the oxidation number of each nitrogen atom in $N_{2}$ is 0.
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 17 - Electrochemistry and Its Applications - Exercise 17.1 - The Nitrogen Cycle: A Review of Oxidation Numbers - Page 739: a
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