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Silicium

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AluminiumSiliciumPhosphoro
Apparentia
crystallin, reflexive, con facies tintate blau
Proprietates atomic
Nomine, symbolo, numero Silicium, Si, 14
Serie chimic metalloide
Gruppo, periodo, bloco 14, 3, p
Configuration electronic [Ne] 3s2 3p2
Electronegativitate 1,90
Proprietates physic
Stato solido
Massa molar 28,0855(3) g·mol−1
Densitate 2,3290 g·cm-3
Densitate liquide al p.f. 2,57 g·cm-3
Puncto de fusion 1687 K, 1414 °C, 2577 °F
Puncto de ebullition 3538 K, 3265 °C, 5909 °F
Calor de fusion 50,21 kJ·mol−1
Calor de vaporisation 359 kJ·mol−1
Calor specific 19,789 J·mol−1·K−1
Resistivitate electric (20 °C) 103 Ω·m
Conductivitate thermal 149 W·m−1·K−1
Expansion thermal (25 °C) 2,6 µm·m−1·K−1
Velocitate de sono (20 °C) 8433 m·s−1
Valores in unitates SI e in le conditiones normal del material (25 °C, 100 kPa) si non indica al contrario.


Silicium es un elemento chimic de symbolo Si e numero atomic 14. Illo es un metalloide plus reactive que carbon, le elemento directemente super in le tabella periodic, e minus reactive que germanium, le elemento directemente infra. Silicium es le elemento le octave plus commun in le universo, e super de 90% del crusta del Terra es componite de silicates.

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