| Na | Sodium | Alkali Metal |
| Atomic number: | 11 | Atomic weight: | 22.989768 | ||
| Shells: | 2,8,1 | Orbitals: | [Ne] 3s1 | ||
| Melting point: | 97.81°C | Boiling point: | 882.9°C | ||
| Covalent radius: | 1.54 | Å | Atomic volume: | 23.7 | cm³/mol |
| Atomic radius: | 2.23 | Å | Ionic radius: | 1.02 (+1) | Å |
| Electronegativity: | 0.93 | Oxidation states: | |||
| 1st ionization pot.: | 5.1391 | V | 2nd ionization pot.: | 47.286 | V |
| 3rd ionization pot.: | 71.641 | V | Specific heat: | 1.23 | J/gK |
| Heat of fusion: | 2.598 | kJ/mol | Heat of vapor.: | 96.960 | kJ/mol |
| Thermal conduct.: | 1.41 | W/cmK | Electrical conduct.: | 0.210 | 10^6/cm ohm |
| Density: | 0.971 | g/cm³ | Valence: | 1 |