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Silicon, 14S
| Appearance | crystalline, reflective with bluish-tinged faces |
| Standard atomic weight Ar°(Si) | [28.084, 28.086] 28.085±0.001 (abridged) |
| Phase at STP | solid |
| Melting point | 1687 K (1414 °C, 2577 °F) |
| Boiling point | 3538 K (3265 °C, 5909 °F) |
| Density (near r.t.) | 2.3290 g/cm3 |
| Density when liquid (at m.p.) | 2.57 g/cm3 |
| Heat of fusion | 50.21 kJ/mol |
| Heat of vaporization | 383 kJ/mol |
| Molar heat capacity | 19.789 J/(mol·K) |
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