Nitrogen

Non-Metal

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

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Electronic 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: --

Thermal data

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

Steric data

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

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay 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

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.

Nitrogen

Physical data

Electronic data

Thermal data

Steric data

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