| Element | Sodium | Symbol | Na |
| Atomic Number | 11 | Molar Mass | 22.99 gmol-1 |
| Electron Configuration | [Ne]3s1 | Normal State | solid metal |
| Density @STP | 0.97 g cm-3 | Melting Point | 98oC |
| Boiling Point | 883oC | Stable Isotopes | 23Na |
| Atomic Radius | 191 pm | Ionic Radius | 102 (1+) pm |
| Electronegativity (Pauling) | 0.93 | Ionization Energy (1st) | 496 kJ mol-1 |
| Ionization Energy (2nd) | 4562 kJ mol-1 | Ionization Energy (3rd) | 6912 kJ mol-1 |
| Molar Heat Capacity | 28.2 J K-1mol-1 | Standard Molar Entropy | 51.3 J K-1mol-1 |
| Enthalpy of Fusion | 2.64 kJ mol-1 | Enthalpy of Vapourization | 89.04 kJ mol-1 |