Subject
air
1
allotropy
1
amide
1
amine
1
ammonia
1
ammonium compound
1
atmosphere
1
azo compound
fixation
1
halide
1
historical aspect
1
hydrate
1
hydrazide
1
hydrazine
1
imine
1
nitric acid
1
nitride
1
nitrification
1
nitrite
1
nitro compound
1
nitrogen
1
nitrogen dioxide
1
nitroso compound
1
nitrosyl compound
1
nitrosyl ion
1
nitrous acid
1
nitrous oxide
1
occurrence
1
oxidation
1
phosphate
1
phosphate mineral
1
phosphide
1
phosphine
phosphite
1
phosphonic acid
1
phosphonium compound
1
phosphoric acid
1
phosphorous acid
1
phosphorus
1
redox reaction
1
reduction
1
solubility
1
sulfide
1
valence
1