2007年6月2日 星期六

Fier www.tool-tool.com

Bewise Inc. www.tool-tool.com Reference source from the internet.

Manganês - Fier - Cobalt
Fe
Ru

tabele periodiche, Fier
Carateristichis gjenerâls
Non, Simbul chimic, Numar atomic Fier, Fe, 26
Serie chimiche Metai di transizion
Grup, Periodi, Bloc |8 (VIIIB), 4 , d
Densitât, Durece 7874 kg/m3, 4,0
Aspiet metalic, lucit, sul grîs
Aspiet dal Fier
Proprietâts atomichis
Pês atomic 55,845 amu
Rai atomic (calc.) 140 (156) pm
Rai covalent 125 pm
Rai di van del Waals nissun dât
Configurazion eletroniche [Ar]3d64s2
eletrons par nivel energjetic 2, 8, 14, 2
Stâts di ossidazion 2,3,4,6 (anfotêr)
Struture cristaline cubiche a cuarp centrât
Proprietâts fisichis
Stât a temperadure ambient solit (fiermagnetic)
Pont di fusion 1808 K (1535°C)
Pont di bolidure 3023 K (2750°C)
Volum molâr 7,09 × 10-6 m3/mol
Calôr di evaporazion 349,6 kJ/mol
Calôr di fusion 13,8 kJ/mol
Tension dal vapôr 7,05 Pa a 1808 K
Velocitât dal sun 4910 m/s at 293,15 K
Varis
Eletronegativitât 1,83 (Scjale di Pauling)
Calôr specific 440 J/(kg*K)
Conducibilitât eletriche 9,93 × 106/m ohm
Conducibilitât termiche 80,2 W/(m*K)
Energje di prime ionizazion 762,5 kJ/mol
Energjie di seconde ionizazion 1561,9 kJ/mol
Energjie di tierce ionizazion 2957 kJ/mol
Energjie di cuarte ionizazion 5290 kJ/mol
Isotops plui stabii
iso NA TD DM DE DP
54Fe 5,8% Fe è stabil con 28 neutrons
55Fe sintetic 2,73 agns cattura ε 0,231 55Mn
56Fe 91,72% Fe al è stabil cun 30 neutrons
57Fe 2,2% Fe al è stabil cun con 31 neutrons
58Fe 0,28% Fe al è stabil cun con 32 neutrons
59Fe sintetic 44,503 diis β- 1,565 59Co
60Fe sintetic 1,5 × 106 agns β- 3,978 60Co

iso = isotop
NA = abondance in nature
TD = timp di decjadiment
DM = modalitât di decjadiment
DE = energjie di decjadiment in MeV
DP = prodot di decjadiment

Il Fier al è l'element chimic di numar atomic 26.


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