# What is the most likely oxidation state of nitrogen?

Jun 15, 2016

#### Answer:

Good question. I would say $\text{ZERO}$.

#### Explanation:

Nitrogen is present in the atmosphere in large concentration as dinitrogen, the zerovalent gas. Of course, it it present in biological systems as the fixed protein, largely $N \left(- I I I\right)$, cf. ammonia.