Nitrogen (N) is a non-metal with atomic number 7 and atomic mass 14.007 u. This data sheet describes its fundamental properties, position in the periodic table and main physical characteristics.
Identity
- Name: Nitrogen
- Symbol: N
- Atomic number: 7
- Atomic mass: 14.007 u
Position in the periodic table
- Group: 15 (VA)
- Period: 2
- Category: Non-metal
Physico-chemical properties
- Standard state: Gas
- Melting point: −210.00 °C
- Boiling point: −195.79 °C
- Density (0 °C, 1 atm): 1.2506 g/L
- Electron configuration: 1s² 2s² 2p³
Scientific description
Nitrogen exists as a diatomic molecule N₂ under standard conditions. This colourless, odourless gas is relatively inert at room temperature due to the extreme strength of the N≡N triple bond.