Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
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.