Nitrohino

Nitrogen, ₇N
	Liquid nitrogen (N2 at < −196 °C)
Nitrogen
Allotropes	tingnan ang § mga alatropo
Appearance	colorless gas, liquid or solid
Standard atomic weight Ar°(N)
	[14.00643, 14.00728]; 14.007±0.001 (pinaikli);
Nitrogen in the periodic table
	carbon ← nitrogen → oxygen
Atomic number (Z)	7
Group	15
Period	2
Block	p-block
Electron configuration	[He] 2s2 2p3
Electrons per shell	2, 5
Physical properties
Phase at STP	gas
Melting point	(N2) 63.23 K (−209.86 °C, −345.75 °F)
Boiling point	(N2) 77.355 K (−195.795 °C, −320.431 °F)
Density (at STP)	1.2506 g/L at 0 °C, 1013 mbar
when liquid (at b.p.)	0.808 g/cm3
Triple point	63.151 K, 12.52 kPa
Critical point	126.21 K, 3.39 MPa
Heat of fusion	(N2) 0.72 kJ/mol
Heat of vaporization	(N2) 5.57 kJ/mol
Molar heat capacity	(N2) 29.124 J/(mol·K)
Atomic properties
Oxidation states	−3, −2, −1, 0, +1, +2, +3, +4, +5 (isang matapang na asidikong oksido)
Electronegativity	Pauling scale: 3.04
Ionization energies	1st: 1402.3 kJ/mol ; 2nd: 2856 kJ/mol ; 3rd: 4578.1 kJ/mol ; (more) ;
Covalent radius	71±1 pm
Van der Waals radius	155 pm
	Mga linyang espektral ng nitrogen
Other properties
Natural occurrence	primordiyal
Crystal structure	hexagonal (hP4)
Lattice constants	a = 411.6 pm; c = 673.4 pm (at t.p.)
Thermal conductivity	25.83×10−3 W/(m⋅K)
Magnetic ordering	diamagnetic
Speed of sound	353 m/s (gas, at 27 °C)
CAS Number	17778-88-0 ; 7727-37-9 (N2)
History
Discovery	Daniel Rutherford (1772)
Named by	Jean-Antoine Chaptal (1790)
Isotopes of nitrogen t; b;
β−α<0.01%	12C
	Kategorya: Nitrogen; tingnan; usapan; baguhin; \| references

Ang nitroheno (Ingles: nitrogen; Espanyol: nitrógeno) ay isang elementong kimikal sa talahanayang peryodiko na sinasagisag ng simbolong N at nagtataglay ng atomikong bilang 7. Ito ay isang tamad at diatomikong gas na walang lasa, amoy o kulay sa pamantayang kundisyon. Binubuo ng nitroheno ang 78.1% ng atmospera ng Daigdig at ito ay isang bahaging elemento ng lahat ng buhay na tisyu at asido amino.

Maraming kompuwesto, tulad ng ammonia at asido nitriko, ay may nitroheno. Ang mga kemikal na ito ay umiikot sa ating ecosystem dahil sa Nitrogen Cycle na kung saan nagagamit ulit nating ang mga kimikal na ito.

Mga sanggunian[baguhin | baguhin ang wikitext]

↑ "Standard Atomic Weights: Nitrogen" (sa wikang Ingles). CIAAW. 2009.{{cite web}}: CS1 maint: date auto-translated (link)
↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (sa wikang Ingles). doi:10.1515/pac-2019-0603. ISSN 1365-3075.{{cite journal}}: CS1 maint: date auto-translated (link)
↑ ^3.0 ^3.1 ^3.2 Lide, David R. (1990–1991). CRC Handbook of Physics and Chemistry (sa wikang Ingles) (ika-71st (na) edisyon). Boca Raton, Ann Arbor, Boston: CRC Press, inc. pp. 4-22 (one page).{{cite book}}: CS1 maint: date auto-translated (link)
↑ "Gases - Density". The Engineering Toolbox. Nakuha noong 27 Enero 2019.{{cite web}}: CS1 maint: date auto-translated (link)
↑ 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.
↑ Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.{{cite book}}: CS1 maint: date auto-translated (link)

[1] "Standard Atomic Weights: Nitrogen" (sa wikang Ingles). CIAAW. 2009.{{cite web}}: CS1 maint: date auto-translated (link)

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (sa wikang Ingles). doi:10.1515/pac-2019-0603. ISSN 1365-3075.{{cite journal}}: CS1 maint: date auto-translated (link)

[CRC71-3] 3.0 ^3.1 ^3.2 Lide, David R. (1990–1991). CRC Handbook of Physics and Chemistry (sa wikang Ingles) (ika-71st (na) edisyon). Boca Raton, Ann Arbor, Boston: CRC Press, inc. pp. 4-22 (one page).{{cite book}}: CS1 maint: date auto-translated (link)

[4] "Gases - Density". The Engineering Toolbox. Nakuha noong 27 Enero 2019.{{cite web}}: CS1 maint: date auto-translated (link)

[5] 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.

[Arblaster_2018-6] Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.{{cite book}}: CS1 maint: date auto-translated (link)

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