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Arsenico

Non revidite
De Wikipedia, le encyclopedia libere
GermaniumArsenicoSelenium
Apparentia
gris metallic
Proprietates atomic
Nomine, symbolo, numero Arsenico, As, 33
Serie chimic metalloide
Gruppo, periodo, bloco 15, 4, p
Configuration electronic [Ar] 4s2 3d10 4p3
Electronegativitate 2,18
Proprietates physic
Stato solido
Massa molar 74,92160(2) g·mol-1
Densitate 5,727 g/cm3
Densitate liquide al p.f. 5,22 g·cm−3
Puncto de fusion 887 K, 615 °C, 1137 °F (subl.)
Puncto triple 1090 K (817 °C), 3628 kPa
Puncto critic 1673 K, ? MPa
Calor de fusion 24,44 kJ·mol-1
Calor de vaporisation 34,76 kJ·mol-1
Calor specific 24,64 J·mol-1·K-1
Resistivitate electric (20 °C) 333 nΩ·m
Conductivitate thermal 50,2 W·m-1·K-1
Valores in unitates SI e in le conditiones normal del material (25 °C, 100 kPa) si non indica al contrario.


Arsenico es un elemento chimic de symbolo As e numero atomic 33.

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