Template:Infobox nitrogen/sandbox

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[[Category:Template:Pagetype with short description]]

Nitrogen, 7N
Liquidnitrogen.jpg
Nitrogen
Appearancecolorless gas, liquid or solid
Standard atomic weight Ar, std(N)[[[:Template:Val]], Template:Val] conventional: Template:Val
Nitrogen in the periodic table
Template:Periodic table (32 columns, micro) -

N

P
carbonnitrogenoxygen
Atomic number (Z)7
Groupgroup 15 (pnictogens)
Periodperiod 2
Block  p-block
Electron configuration[He] 2s2 2p3
Electrons per shell2, 5
Physical properties
Phase at STPgas
Melting point63.15 K ​(−210.00 °C, ​−346.00 °F)
Boiling point77.355 K ​(−195.795 °C, ​−320.431 °F)
Density (at STP)1.251 g/L
when liquid (at b.p.)0.808 g/cm3
Triple point63.151 K, ​12.52 kPa
Critical point126.192 K, 3.3958 MPa
Heat of fusion(N2) 0.72 kJ/mol
Heat of vaporization(N2) 5.56 kJ/mol
Molar heat capacity(N2) 29.124 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 37 41 46 53 62 77
Atomic properties
Oxidation states−3, −2, −1, +1, +2, +3, +4, +5 (a strongly acidic oxide)
ElectronegativityPauling scale: 3.04
Ionization energies
  • 1st: 1402.3 kJ/mol
  • 2nd: 2856 kJ/mol
  • 3rd: 4578.1 kJ/mol
  • (more)
Covalent radius71±1 pm
Van der Waals radius155 pm
Color lines in a spectral range
Spectral lines of nitrogen
Other properties
Natural occurrenceprimordial
Crystal structurehexagonal
Hexagonal crystal structure for nitrogen
Speed of sound353 m/s (gas, at 27 °C)
Thermal conductivity25.83×10−3 W/(m·K)
Magnetic orderingdiamagnetic
CAS Number7727-37-9
History
DiscoveryDaniel Rutherford (1772)
Named byJean-Antoine Chaptal (1790)
Main isotopes of nitrogen
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
13N syn 9.965 min ε 13C
14N 99.634% stable
15N 0.366% stable
Category Category: Nitrogen
| references

References

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