Silicium
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.
| Aluminium ← Silicium → Phosphoro | |
| 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. | |
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