7 N 14.007
Nitrogen
diatomic nonmetal
Properties
- Atomic number
- 7
- Atomic mass
- 14.007 u
- Category
- diatomic nonmetal
- Group
- 15
- Period
- 2
- Block
- p-block
- State (room temp)
- Gas
- Outer-shell electrons
- 5
- Electronegativity
- 3.04 (Pauling)
- Density
- —
- Melting point
- -210 °C
- Boiling point
- -195.79 °C
Electron configuration
1s² 2s² 2p³
Noble-gas shorthand: [He] 2s² 2p³
Electrons per shell: 2, 5 — that's 5 in the outermost shell.
About Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.
- Discovered by Daniel Rutherford
- Named by Jean-Antoine Chaptal
- Appearance: colorless gas, liquid or solid
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.