Nitrogen is a relatively unreactive diatomic gas that dominates Earth's atmosphere and is essential to proteins and nucleic acids.
Atomic number
7
Category
Reactive nonmetal
Period
2
Group
15
State
Gas
Fun facts about Nitrogen
The strong triple bond in nitrogen gas makes it difficult to react.
Nitrogen fixation converts atmospheric nitrogen into biologically available compounds.
Liquid nitrogen boils at a very low temperature and rapidly freezes materials.
Common uses of Nitrogen
Fertiliser production
Inert food packaging
Cryogenic cooling
Where Nitrogen sits in the periodic table
Nitrogen is classified as a reactive nonmetal in period 2 and group 15 of the periodic table. Under the conditions represented in this reference, its state is gas.
Quick chemistry revision
For quick revision, pair the symbol N with atomic number 7 and the listed atomic mass 14.007. The summary, facts, and uses above keep those element properties together in one reference.