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Nitrogen (properties)

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Nitrogen
Classification: Non-metal, Group: Pnictogen, Symbol: N, Crystal structure: Hexagonal, Electron configuration: 1s2 2s2p3
Property Value in metric unit Value in US unit
Atomic radius 0.75 Å 0.75 Å
Covalent radius 0.75 Å 0.75 Å
Ionic radius (-3) 1.71 Å 1.71 Å
Valence electron potential -550 eV -550 eV
Energy of first ionization 1402 kJ/mol 334.8 kcal/mol
Energy of second ionization 2856 kJ/mol 682.1 kcal/mol
Energy of third ionization 4578 kJ/mol 1093 kcal/mol
Electro-chemical equivalent 0.10452 *10-3 kg/A*hr 3.687 *10-3 oz/A*hr
Electro-negativity (Pauling) 3.04 3.04
Atomic mass (average) 14.0067 14.0067
Atomic volume 17.3 cm³/mol 1.056 in³/mol
Density of gas at 68°F (20°C), 1 atm. 1.2506 kg/m³ 0.0781 lb/ft³
Density of liquid at boiling point, 1 atm. 808 kg/m³ 50.45 lb/ft³
Heat of fusion 0.3602 kJ/mol 0.08608 kcal/mol
Heat of vaporization 2.7928 kJ/mol 0.66705 kcal/mol
Specific heat capacity 1040 J/(kg*K) 0.248 BTU/(lb*ºF)
Boiling point -195.8 ºC -320.44 ºF
Melting Point -209.9 ºC -345.82 ºF
Thermal conductivity at 68°F (20°C), 1 atm. 0.026 W/(m*K) 0.18 BTU*in/(hr*ft²*ºF)
Appearance colorless, odorless, tasteless gas

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