Nitrogen gas is a diatomic molecule composed of two nitrogen atoms bonded together. It is a colorless and odorless gas that makes up about 78% of Earth's atmosphere.
Related terms
Diatomic molecule: A molecule that consists of two atoms chemically bonded together.
Atmosphere: The layer(s) of gases surrounding a planet or celestial body.
Chemical formula: A representation that shows the types and numbers of atoms present in a compound.