Eigenschaften

CAS-Nummer7440-68-8
PubChem CIDna
Atomradius-
Molares Volumen30
Atommasse[210]
Blockp
Siedepunkt337
Bulk Modulus
KategorieHalogene
Kristallstruktur
FarbeSilber
Kovalenter Radius150
Dichte7
Electrical Resistivity
Elektronenkonfiguration[Xe] 4f14 5d10 6s2 6p5
Elektronen pro Schale2, 8, 18, 32, 18, 7
Elektronegativität2,2
Elektronen85
Gruppe17
Schmelzwärme6
Verdampfungswärme40
Ionisierungsenergie9,3
Magnetic Ordering
Magnetic Susceptibility
Masse[210]
Massenzahl85
Schmelzpunkt302
NameAstat
Neutronen125
Ordnungszahl210
Oxidationszustände-1, 1, 3, 5, 7
Periode6
AggregatzustandFest
Poisson Ratio
Protonen85
Shear Modulus
Spezifische Wärmekapazität-
ElementsymbolAt
Wärmeleitfähigkeit0,017
Van der Waals Radius
Young's Modulus
Häufigkeit
Häufigkeit in der Erdkrustena
Häufigkeit im Universumna
At Astat 85 (210) 17 6 p 85 302.0 337.0 [Xe] 4f14 5d10 6s2 6p5 2 8 18 32 18 7 None Silver Unknown 2.2 2.39 {"1":"890"} 920 270.1 142 1.45 12.0 30.0 1.7 1 8.06 h 11.7h BetaPlusDecay Solid, Halogen, Radioactive, Synthetic, Nonmetal AS-teh-teen Unstable, radioactive member of the halogen group. Since its isotopes have such short half-lives there are no commercially significant compounds of astatine. Does not occur in nature. Similar to iodine. Produced by bombarding bismuth with alpha particles. sSL7EwdlLlE Astatine
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. From the Latin word nitrum, Greek Nitron, native soda; and genes, forming 85 1940 Dale Corson, MacKenzie, Segre California, USA From the Greek word "astatos" meaning "unstable"

Isotopes of Nitrogen

Standard Atomic Weight

[210]

Stabile Isotope

Instabile Isotope

193At 194At 195At 196At 197At 198At 199At 200At 201At 202At 203At 204At 205At 206At 207At 208At 209At 210At 211At 212At 213At 214At 215At 216At 217At 218At 219At 220At 221At 222At 223At

Rapid release of nitrogen gas into an enclosed space can displace oxygen, and therefore represents an asphyxiation hazard
Nitrogen is present in all living organisms, in proteins, nucleic acids and other molecules
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.