Magnesium vs Scandium
| Property | Mg Magnesium | Sc Scandium |
|---|---|---|
| Atomic number | 12 | 21 |
| Symbol | Mg | Sc |
| Name | Magnesium | Scandium |
| Category | alkaline-earth-metal | transition-metal |
| Standard Atomic Weight | 24.3055 u | 44.955908 u |
| Period | 3 | 4 |
| Group | 2 | 3 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s2 | [Ar]4s23d1 |
| Oxidation states | [0, 1, 2] | [0, 1, 2, 3] |
| Electronegativity (Pauling) | 1.31 | 1.36 |
| Electron affinity | -0.4 eV | 0.188 eV |
| Density | 1740 kg/m³ | 2990 kg/m³ |
| Melting point | 649.85 °C | 1540.85 °C |
| Boiling point | 1089.85 °C | 2835.85 °C |
| Discovery year | 1755 | 1879 |