Nitrogen

ELI5 - What is Nitrogen?

Nitrogen is the chemical element with atomic number 7 and symbol N. At moderate temperatures and pressures, nitrogen exists as a colorless, odorless gas. The atmosphere contains more than 78% nitrogen by mass, which is more than three times its amount of oxygen. Atoms of nitrogen have 5 valence electrons and typically 7 neutrons.

By Alex 7 months ago