Scandium vs Strontium
| Property | Sc Scandium | Sr Strontium |
|---|---|---|
| Atomic number | 21 | 38 |
| Symbol | Sc | Sr |
| Name | Scandium | Strontium |
| Category | transition-metal | alkaline-earth-metal |
| Standard Atomic Weight | 44.955908 u | 87.62 u |
| Period | 4 | 5 |
| Group | 3 | 2 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s23d1 | [Kr]5s2 |
| Oxidation states | [0, 1, 2, 3] | [1, 2] |
| Electronegativity (Pauling) | 1.36 | 0.95 |
| Electron affinity | 0.188 eV | 0.052 eV |
| Density | 2990 kg/m³ | 2640 kg/m³ |
| Melting point | 1540.85 °C | 776.85 °C |
| Boiling point | 2835.85 °C | 1381.85 °C |
| Discovery year | 1879 | 1792 |