Sodium vs Magnesium
| Property | Na Sodium | Mg Magnesium |
|---|---|---|
| Atomic number | 11 | 12 |
| Symbol | Na | Mg |
| Name | Sodium | Magnesium |
| Category | alkali-metal | alkaline-earth-metal |
| Standard Atomic Weight | 22.989769 u | 24.3055 u |
| Period | 3 | 3 |
| Group | 1 | 2 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s1 | [Ne]3s2 |
| Oxidation states | [-1, 0, 1] | [0, 1, 2] |
| Electronegativity (Pauling) | 0.93 | 1.31 |
| Electron affinity | 0.5479 eV | -0.4 eV |
| Density | 970 kg/m³ | 1740 kg/m³ |
| Melting point | 97.8 °C | 649.85 °C |
| Boiling point | 882.85 °C | 1089.85 °C |
| Discovery year | 1807 | 1755 |