Nitrogen was discovered by Daniel Rutherford at 1772 in Scotland.
Name: Nitrogen
Symbol: N
Atomic number: 7
Atomic weight: 14.007
State: gas
Group, period, block: 15, 2, p
Color: colorless gas, liquid or solid
Classification: Non-metallic
Electron configuration: 1s2 2s2 2p3
2,5
Physical properties
Density: 1026 kg m-3
Melting point: 63.05 [or -210.1 °C (-346.18 °F)] K
Boiling point: 77.36 [or -195.79 °C (-320.42 °F)] K
Atomic properties
Oxidation states: 5, 4, 3, 2, 1, -1, -2, -3
Electronegativity: 3.04 (Pauling scale)
Ionization energies: 1st: 1402.3 kJ·mol-1
Covalent radius: 71±1 pm
Van der Waals radius: 155 pm
- N
Electron Configuration
Isotopes
There are two naturally occurring isotopes of nitrogen exist, 14N and 15N.