మూస:సమాచార పెట్టె నత్రజని

నత్రజని, ₀₀N
	Liquid nitrogen (N2 at below −196 °C)
నత్రజని
Allotropes	see § Allotropes
Appearance	రంగులేని వాయువు, ద్రవం లేదా ఘనం
Standard atomic weight Ar°(N)
	[14.00643, 14.00728]; 14.007±0.001 (abridged);
నత్రజని in the periodic table
	కార్బన్ ← నత్రజని → ఆక్సిజన్
Group	మూస:Infobox element/symbol-to-group/format
Period	period 2
Block	p-block
Electron configuration	[He] 2s2 2p3
Electrons per shell	2, 5
Physical properties
Phase at STP	gas
Melting point	63.15 K (−210.00 °C, −346.00 °F)
Boiling point	77.355 K (−195.795 °C, −320.431 °F)
Density (at STP)	1.251 g/L
when liquid (at b.p.)	0.808 g/cm3
Triple point	63.151 K, 12.52 kPa
Critical point	126.192 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)
Atomic properties
Oxidation states	−3, −2, −1, 0, +1, +2, +3, +4, +5 (a strongly acidic oxide)
Electronegativity	Pauling scale: 3.04
Ionization energies	(more);
Covalent radius	71±1 pm
Van der Waals radius	155 pm
	Spectral lines of నత్రజని
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal
Speed of sound	(gas, 27 °C) 353 m/s
Thermal conductivity	25.83 × 10−3 W/(m⋅K)
Magnetic ordering	diamagnetic
CAS Number	7727-37-9
History
Discovery	Daniel Rutherford (1772)
Named by	Jean-Antoine Chaptal (1790)
Isotopes of నత్రజని v; e;
	Template:infobox నత్రజని isotopes does not exist
	Category: నత్రజని; view; talk; edit; \| references

References

↑ "Standard Atomic Weights: Nitrogen". CIAAW. 2009.
↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
↑ Tetrazoles contain a pair of double-bonded nitrogen atoms with oxidation state 0 in the ring. A Synthesis of the parent 1H-tetrazole, CH₂N₄ (two atoms N(0)) is given in Ronald A. Henry and William G. Finnegan, "An Improved Procedure for the Deamination of 5-Aminotetrazole", _J. Am. Chem. Soc._ (1954), 76, 1, 290–291, https://doi.org/10.1021/ja01630a086.

[1] "Standard Atomic Weights: Nitrogen". CIAAW. 2009.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[3] Tetrazoles contain a pair of double-bonded nitrogen atoms with oxidation state 0 in the ring. A Synthesis of the parent 1H-tetrazole, CH₂N₄ (two atoms N(0)) is given in Ronald A. Henry and William G. Finnegan, "An Improved Procedure for the Deamination of 5-Aminotetrazole", _J. Am. Chem. Soc._ (1954), 76, 1, 290–291, https://doi.org/10.1021/ja01630a086.

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