Beryllium vs Lanthanum
| Property | Be Beryllium | La Lanthanum |
|---|---|---|
| Atomic number | 4 | 57 |
| Symbol | Be | La |
| Name | Beryllium | Lanthanum |
| Category | alkaline-earth-metal | lanthanide |
| Standard Atomic Weight | 9.012183 u | 138.90547 u |
| Period | 2 | 6 |
| Group | 2 | N/A |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [He]2s2 | [Xe]6s25d1 |
| Oxidation states | [0, 1, 2] | [0, 1, 2, 3] |
| Electronegativity (Pauling) | 1.57 | 1.1 |
| Electron affinity | -0.52 eV | 0.47 eV |
| Density | 1850 kg/m³ | 6150 kg/m³ |
| Melting point | 1286.85 °C | 917.85 °C |
| Boiling point | 2470.85 °C | 3463.85 °C |
| Discovery year | 1797 | 1839 |