Template:Infobox nitrogen

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7 carbonnitrogenoxygen
-

N

P
General
Name, symbol, number nitrogen, N, 7
Chemical series nonmetals
Group, period, block 152, p
Appearance colorless gas
Standard atomic weight 14.007(2)g·mol−1
Electron configuration 1s2 2s2 2p3
Electrons per shell 2, 5
Physical properties
Phase gas
Density (0 °C, 101.325 kPa)
1.251 g/L
Melting point 63.15 K
(-210.00 °C, -346.00 °F)
Boiling point 77.36 K
(-195.79 °C, -320.42 °F)
Critical point 126.21 K, 3.39 MPa
Heat of fusion (N2) 0.360 kJ·mol−1
Heat of vaporization (N2) 5.56 kJ·mol−1
Specific heat capacity (25 °C) (N2)
29.124 J·mol−1·K−1
Vapor pressure
P/Pa 1 10 100 1 k 10 k 100 k
at T/K 37 41 46 53 62 77
Atomic properties
Crystal structure hexagonal
Oxidation states 5, 4, 3, 2, 1,[1], -1, -3
(strongly acidic oxide)
Electronegativity 3.04 (Pauling scale)
Ionization energies
(more)
1st: 1402.3 kJ·mol−1
2nd: 2856 kJ·mol−1
3rd: 4578.1 kJ·mol−1
Atomic radius 65 pm
Atomic radius (calc.) 56 pm
Covalent radius 75 pm
Van der Waals radius 155 pm
Miscellaneous
Magnetic ordering diamagnetic
Thermal conductivity (300 K) 25.83 × 10−3 W·m−1·K−1
Speed of sound (gas, 27 °C) 353 m/s
CAS registry number 7727-37-9
Selected isotopes
Main article: Isotopes of nitrogen
iso NA half-life DM DE (MeV) DP
13N syn 9.965 min ε 2.220 13C
14N 99.634% 14N is stable with 7 neutrons
15N 0.366% 15N is stable with 8 neutrons
References
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