| Oxidation State | Substances |
| N-III | NH3 , NH4- (aq) |
| N-II | N2H4 , N2H5+ (aq) |
| N-I | NH2OH |
| N0 | N2 |
| NII | NO |
| NIII | HNO2 , NO2- (aq), NF3 |
| NIV | N2O4 = 2NO2 |
| NV | HNO3 ,NO3- (aq) |
Nitrogen: Properties
Compound Substances
| Oxidation State | Substances |
| N-III | NH3 , NH4- (aq) |
| N-II | N2H4 , N2H5+ (aq) |
| N-I | NH2OH |
| N0 | N2 |
| NII | NO |
| NIII | HNO2 , NO2- (aq), NF3 |
| NIV | N2O4 = 2NO2 |
| NV | HNO3 ,NO3- (aq) |