Nitrogen oxide

Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds:

Charge-neutral

Nitric oxide, nitrogen oxide, or nitrogen monoxide
Nitrogen dioxide, nitrogen oxide
Nitrogen trioxide, or nitrate radical
Nitrous oxide, nitrogen oxide
Dinitrogen dioxide, nitrogen oxide dimer
Dinitrogen trioxide, nitrogen oxide
Dinitrogen tetroxide, nitrogen oxide dimer
Dinitrogen pentoxide, nitrogen oxide, or nitronium nitrate
Nitrosyl azide, nitrogen oxide
Nitryl azide
Oxatetrazole
Trinitramide, nitrogen oxide
Anions

Cations

Nitrosonium
Nitronium
Atmospheric sciences

In atmospheric chemistry:

NOx| refers to the sum of NO and nitrogen dioxide|.
NOy| refers to the sum of and all oxidized atmospheric odd-nitrogen species
= −
Mixed Oxides of Nitrogen : solutions of nitric oxide in dinitrogen tetroxide/nitrogen dioxide.
Stability

Due to relatively weak N–O bonding, all nitrogen oxides are unstable with respect to and, which is the principle behind the catalytic converter, and prevents the oxygen and nitrogen in the atmosphere from combusting.