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Lithium

De Wikipedia, le encyclopedia libere
HeliumLithiumBeryllium
Apparentia
argentee-blanc (exponite flottar in oleo)
Proprietates atomic
Nomine, symbolo, numero Lithium, Li, 3
Serie chimic metallo alcalin
Gruppo, periodo, bloco 1, 2, s
Configuration electronic [He] 2s1
Electronegativitate 0,98
Proprietates physic
Stato solido
Massa molar 6,941(2) g·mol−1
Densitate 0,534 g·cm−3
Densitate liquide al p.f. 0,512 g·cm−3
Puncto de fusion 453,69 K, 180,54 °C, 356.97 °F
Puncto de ebullition 1615 K, 1342 °C, 2448 °F
Puncto critic 3223 K, 67 MPa (extrapolava)
Calor de fusion 3,00 kJ·mol−1
Calor de vaporisation 147,1 kJ·mol−1
Calor specific 24,860 J·mol−1·K−1
Resistivitate electric (20 °C) 92,8 nΩ·m
Conductivitate thermal 84,8 W·m−1·K−1
Expansion thermal (25 °C) 46 µm·m−1·K−1
Velocitate de sono (20 °C) 6000 m/s
Riscos
NFPA 704

3
3
2
W
Valores in unitates SI e in le conditiones normal del material (25 °C, 100 kPa) si non indica al contrario.


Lithium es un elemento chimic de numero atomic 3. Illo ha un color argentee, es le metallo le plus leve, e como omne metallos alcalin es multo reactive. Le usos principal de lithium es in ceramicas, pilas, e lubrificantes.

Un pila recargable de ion de lithium pro un computator laptop.
Nota
Nota
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