Proprietà

CAS Number7440-68-8
PubChem CIDna
Raggio Atomico-
Volume Molare30
Massa Atomica[210]
Bloccop
Punto di Ebollizione337
Bulk Modulus
CategoriaAlogeni
Struttura Cristallina
ColoreArgento
Raggio Covalente150
Densità7
Electrical Resistivity
Configurazione Elettronica[Xe] 4f14 5d10 6s2 6p5
Elettroni per shell2, 8, 18, 32, 18, 7
Elettronegatività2,2
Electrons85
Gruppo17
Calore di Fusione6
Calore di Evaporazione40
Potenziale di Ionizzazione9,3
Magnetic Ordering
Magnetic Susceptibility
Massa[210]
Mass Number85
Punto di Fusione302
NomeAstato
Neutroni125
Numero Atomico210
Stato di Ossidazione-1, 1, 3, 5, 7
Periodo6
FaseSolido
Poisson Ratio
Protoni85
Shear Modulus
Capacità Termica Specifica-
SimboloAt
Conduttività Termica0,017
Van der Waals radius
Young's Modulus
Abbondanza
Abbondanza sulla crosta terrestrena
Abbondanza nell'universona
At Astato 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. Il nome deriva dal francese azote, che prende origine dal greco azotikos, non produttore di vita 85 1940 Dale Corson, MacKenzie, Segre California, USA From the Greek word "astatos" meaning "unstable"

Isotopi dell'azoto

Standard Atomic Weight

[210]

Isotopi Stabili

Isotopi Instabili

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.