Use
The nitrogen oxides provide an example of the law of multiple proportions and the +1 to +5 oxidation states of nitrogen. They are as follows: N2O (nitrous oxide), NO
(nitric oxide), N2O3 (nitrogen trioxide or nitrogen
sesquioxide), N2O4 (dinitrogen tetroxide or nitrogen peroxide), NO2 (nitrogen dioxide), N2O5 (dinitrogen pentoxide), N3O4 (trinitrogen tetroxide), and
NO
3, which is unstable.