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Nitrogen

Non-Metalgaseous
Symbol: N
Atomic number: 7
Atomic mass: 14.00674
Group: Non-Metal
CAS-number: 7727-37-9

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Physical data
Isotopes
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Physical data

Electronic dataThermal dataSteric data
Shells: 2, 5
Orbitals: [He] 2s2 2p3
Electronegativity: 3.0, 3.1
1. Ionization potential: 14.5341 eV
2. Ionization potential: 29.601 eV
3. Ionization potential: 47.448 eV
Oxidation states: 5, 4, 3, 2, -3
Electrical conductivity: --
Melting point: -209.86 °C
Boiling point: -195.8 °C
Specific heat: 1.04 J/gK
Heat of fusion: 0.3604 kJ/mol
Heat of vaporization: 2.7928 kJ/mol
Thermal conductivity: 0.0002598 W/cmK
Atomic radius: 0.75 Å
Ionic radius: 1.71 Å (-3)
Covalent radius: 0.75 Å
Atomic volume: 17.3 cm³/mol
Density (293 K): 0.0012506 g/cm³
Crystal structure: hexagonal
hexagonal

Isotopes

NuclideAbundance [%]MassSpinHalflifeDecay modeDecay tree
13N 0 13 1/2 9.97m β+ View
14N 99.635 14.0031 1 -- --
15N 0.365 15.0001 1/2 -- --
16N 0 16 2 7.13s β- View

Other info

Name origin:Greek: nitron and genes, (soda forming)
Description:Colorless, odorless, tasteless, generally inert gas. Fifth most abundant element in the universe. Makes up about 78% of earth's atmosphere.
Discovered by:Daniel Rutherford
Year:1772
Place:Scotland
Sources:Obtained from liquid air by fractional distillation.
Use(s):Primarily to produce ammonia and other fertilizers. Also used in making nitric acid, which is used in explosives. Also used in welding and enhanced oil recovery.