Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Sodium | |
| Electron Configuration | 2,8,1 |
| Electron Configuration | [Ne] 3s1 |
| Electronegativity | 0.93 |
| Enthalpy of Fusion | 2.64 kJ mol-1 |
| Enthalpy of Vaporisation | 99.2 kJ mol-1 |
| Heat Capacity | 28.230 J mol-1 K-1 |
| Thermal Conductivity | 142 W m-1 K-1 |
| Thermal Expansion | 71 μm m-1 K-1 |
| Magnetic ordering | Paramagnetic |
| Electrical resistivity | 47.7 Ω m |
| Speed of sound | 3200 m s-1 |
| Young's modulus | 10 GPa |
| Shear modulus | 3200 GPa |
| Bulk modulus | 6.3 GPa |
| Mohs hardness | 0.5 |
| Brinell hardness | 0.69 MPa |
| Atomic Radii |
|
| Atomic Radius
|
180 pm |
| Bohr Radius
|
190 pm |
| Covalent Radius
|
154 pm |
| Van der Waals
|
227 pm |
| Oxidation States |
|
| Main
|
Na+1 |
| Other
|
Na-1 (in liquid NH3) |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
495.8 |
| M+ - M2+ |
4562.4 |
| M2+ - M3+ |
6912 |
| M3+ - M4+ |
9543 |
| M4+ - M5+ |
13353 |
| M5+ - M6+ |
16610 |
| M6+ - M7+ |
20114 |
| M7+ - M8+ |
25490 |
| M8+ - M9+ |
28933 |
| M9+ - M10+ |
141360 |