Lithium vs Strontium
| Property | Li Lithium | Sr Strontium |
|---|---|---|
| Atomic number | 3 | 38 |
| Symbol | Li | Sr |
| Name | Lithium | Strontium |
| Category | alkali-metal | alkaline-earth-metal |
| Standard Atomic Weight | 6.9675 u | 87.62 u |
| Period | 2 | 5 |
| Group | 1 | 2 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [He]2s1 | [Kr]5s2 |
| Oxidation states | [1] | [1, 2] |
| Electronegativity (Pauling) | 0.98 | 0.95 |
| Electron affinity | 0.61804 eV | 0.052 eV |
| Density | 534 kg/m³ | 2640 kg/m³ |
| Melting point | 180.5 °C | 776.85 °C |
| Boiling point | 1341.85 °C | 1381.85 °C |
| Discovery year | 1817 | 1792 |