Sodium vs Scandium
| Property | Na Sodium | Sc Scandium |
|---|---|---|
| Atomic number | 11 | 21 |
| Symbol | Na | Sc |
| Name | Sodium | Scandium |
| Category | alkali-metal | transition-metal |
| Standard Atomic Weight | 22.989769 u | 44.955908 u |
| Period | 3 | 4 |
| Group | 1 | 3 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s1 | [Ar]4s23d1 |
| Oxidation states | [-1, 0, 1] | [0, 1, 2, 3] |
| Electronegativity (Pauling) | 0.93 | 1.36 |
| Electron affinity | 0.5479 eV | 0.188 eV |
| Density | 970 kg/m³ | 2990 kg/m³ |
| Melting point | 97.8 °C | 1540.85 °C |
| Boiling point | 882.85 °C | 2835.85 °C |
| Discovery year | 1807 | 1879 |