Dušik
7
N
Skupina
15
Perioda
2
Blok
p
Protoni
Elektroni
Nevtroni
7
7
7
Splošne lastnosti
Vrstno število
7
Atomska teža
14,0067
Masno število
14
Kategorija
Druge nekovine
Barva
Brezbarven
Radioaktivno
Ne
From the Latin word nitrum, Greek Nitron, native soda; and genes, forming
Kristalna struktura
Heksagonalna
Zgodovina
Nitrogen is considered to have been discovered by Scottish physician Daniel Rutherford in 1772, who called it noxious air or fixed air.
It was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish and Joseph Priestley.
In 1790 the French chemist Jean-Antoine-Claude Chaptal named the element nitrogen.
It was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish and Joseph Priestley.
In 1790 the French chemist Jean-Antoine-Claude Chaptal named the element nitrogen.
Elektroni po lupinah
2, 5
Razporeditev elektronov
[He] 2s2 2p3
Nitrogen is present in all living organisms, in proteins, nucleic acids and other molecules
Fizikalne lastnosti
Faza snovi
Plin
Gostota
0,0012506 g/cm3
Tališče
63,15 K | -210 °C | -346 °F
Vrelišče
77,36 K | -195,79 °C | -320,42 °F
Talilna toplota
0,36 kJ/mol
Izparilna toplota
2,79 kJ/mol
Toplotna kapaciteta
1,04 J/g·K
Zastopanost v Zemljini skorji
0,002%
Zastopanost v vesolju
0,1%
CAS številka
7727-37-9
PubChem CID številka
947
Atomske lastnosti
Atomski polmer
56 pm
Kovalentni polmer
71 pm
Elektronegativnost
3,04 (Paulingova lestvica)
Ionizacijski potencial
14,5341 eV
Atomski volumen
17,3 cm3/mol
Toplotna prevodnost
0,0002598 W/cm·K
Oksidacijska stanja
-3, -2, -1, 1, 2, 3, 4, 5
Uporabe
Nitrogen is used to produce ammonia and fertilizers, vital for current food production methods.
Liquid nitrogen is used as a refrigerant.
Nitric acid is used as an oxidizing agent in liquid fueled rockets.
Nitrogen is a constituent of molecules in every major drug class in pharmacology and medicine.
Liquid nitrogen is used as a refrigerant.
Nitric acid is used as an oxidizing agent in liquid fueled rockets.
Nitrogen is a constituent of molecules in every major drug class in pharmacology and medicine.
Rapid release of nitrogen gas into an enclosed space can displace oxygen, and therefore represents an asphyxiation hazard
Izotopi
Stabilni izotopi
14N, 15NNestabilni izotopi
10N, 11N, 12N, 13N, 16N, 17N, 18N, 19N, 20N, 21N, 22N, 23N, 24N, 25N