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Lanthano

Non revidite
De Wikipedia, le encyclopedia libere
BariumLanthanoCerium
Apparentia
argentee blanc
Proprietates atomic
Nomine, symbolo, numero Lanthano, La, 57
Serie chimic lanthanido
Gruppo, periodo, bloco 3, 6, f
Configuration electronic [Xe] 6s2 5d1
Electronegativitate 1,10
Proprietates physic
Stato solido
Massa molar 138,90547 g·mol-1
Densitate 6,162 g·cm-3
Densitate liquide al p.f. 5,94 g·cm-3
Puncto de fusion 1193 K, 920 °C, 1688 °F
Puncto de ebullition 3737 K, 3464 °C, 6267 °F
Calor de fusion 6,20 kJ·mol-1
Calor de vaporisation 402,1 kJ·mol-1
Calor specific 27,11 J·mol-1·K-1
Resistivitate electric (t.a.) (α, poly) 615 nΩ·m
Conductivitate thermal 13,4 W·m-1·K-1
Expansion thermal (t.a.) (α, poly) 12.1 µm·m-1·K-1
Velocitate de sono (20 °C) 2475 m·s−1
Valores in unitates SI e in le conditiones normal del material (25 °C, 100 kPa) si non indica al contrario.


Lanthano es un elemento chimic de symbolo La e numero atomic 57.

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