Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Silicon | |
| Electron Configuration | 2,8,4 |
| Electron Configuration | [Ne] 3s2 3p2 |
| Electronegativity | 1.90 |
| Enthalpy of Fusion | 39.6 kJ mol-1 |
| Enthalpy of Vaporisation | 383.3 kJ mol-1 |
| Heat Capacity | 19.789 J mol-1 K-1 |
| Thermal Conductivity | 149 W m-1 K-1 |
| Thermal Expansion | 2.6 μm m-1 K-1 |
| Magnetic ordering | Non-magnetic |
| Speed of sound | 8433 m s-1 |
| Young's modulus | 47 GPa |
| Bulk modulus | 100 GPa |
| Mohs hardness | 6.5 |
| Atomic Radii |
|
| Atomic Radius
|
110 pm |
| Bohr Radius
|
111 pm |
| Covalent Radius
|
111 pm |
| Van der Waals
|
210 pm |
| Oxidation States |
|
| Main
|
Si+2, Si+4 |
| Other
|
|
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
786.5 |
| M+ - M2+ |
1577.1 |
| M2+ - M3+ |
3231.4 |
| M3+ - M4+ |
4355.5 |
| M4+ - M5+ |
16091 |
| M5+ - M6+ |
19784 |
| M6+ - M7+ |
23786 |
| M7+ - M8+ |
29252 |
| M8+ - M9+ |
33876 |
| M9+ - M10+ |
38732 |
| Covalent Bonds (kJ mol-1) |
|
| Si-H
|
326 |
| Si-C
|
301 |
| Si-O
|
486 |
| Si-F
|
582 |
| Si-Cl
|
391 |
| Si-Si
|
226 |