7 N
Reactive nonmetal
Nitrogen
78% of the atmosphere.
Properties of Nitrogen
- Atomic number (Z)
- 7
- Symbol
- N
- Atomic mass
- 14.007 g/mol
- Category
- Reactive nonmetal
- Group
- 15
- Period
- 2
- Electron configuration
- [He] 2s² 2p³
- Electronegativity (Pauling)
- 3.04
- Atomic radius
- 56 pm
- First ionization energy
- 1402 kJ/mol
- Melting point
- 63.15 K (-210.0 °C)
- Boiling point
- 77.36 K (-195.8 °C)
- Density
- 0.001251 g/cm³
- Phase at 25 °C
- Gas
- Discovered
- Discovered in 1772
Frequently asked questions
What is Nitrogen?
Nitrogen (N) is a reactive nonmetal, element number 7 on the periodic table. 78% of the atmosphere.
What is the atomic number and atomic mass of Nitrogen?
Nitrogen has atomic number 7 and an atomic mass of about 14.007 g/mol.
What is the electron configuration of Nitrogen?
The electron configuration of Nitrogen is [He] 2s² 2p³.
Where is Nitrogen on the periodic table?
Nitrogen sits in group 15, period 2, and is classified as a reactive nonmetal.