Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Aluminium | |
| Electron Configuration | 2,8,3 |
| Electron Configuration | [Ne] 3s2 3p1 |
| Electronegativity | 1.61 |
| Enthalpy of Fusion | 10.67 kJ mol-1 |
| Enthalpy of Vaporisation | 290.8 kJ mol-1 |
| Heat Capacity | 24.200 J mol-1 K-1 |
| Thermal Conductivity | 237 W m-1 K-1 |
| Thermal Expansion | 23.1 μm m-1 K-1 |
| Magnetic ordering | Paramagnetic |
| Electrical resistivity | 26.50 Ω m |
| Speed of sound | 5000 m s-1 |
| Young's modulus | 70 GPa |
| Shear modulus | 5000 GPa |
| Bulk modulus | 76 GPa |
| Poisson ratio | 0.35 |
| Mohs hardness | 2.75 |
| Vickers hardness | 167 MPa |
| Brinell hardness | 245 MPa |
| Atomic Radii |
|
| Atomic Radius
|
125 pm |
| Bohr Radius
|
118 pm |
| Covalent Radius
|
118 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Al+3 |
| Other
|
Al0, Al+1 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
577.4 |
| M+ - M2+ |
1816.6 |
| M2+ - M3+ |
2744.6 |
| M3+ - M4+ |
11575 |
| M4+ - M5+ |
14839 |
| M5+ - M6+ |
18376 |
| M6+ - M7+ |
23293 |
| M7+ - M8+ |
27457 |
| M8+ - M9+ |
31857 |
| M9+ - M10+ |
38459 |
| Covalent Bonds (kJ mol-1) |
|
| Al-H
|
285 |
| Al-C
|
225 |
| Al-O
|
585 |
| Al-F
|
665 |
| Al-Cl
|
498 |
| Al-Al
|
200 |