Aluminum vs Samarium
| Property | Al Aluminum | Sm Samarium |
|---|---|---|
| Atomic number | 13 | 62 |
| Symbol | Al | Sm |
| Name | Aluminum | Samarium |
| Category | post-transition-metal | lanthanide |
| Standard Atomic Weight | 26.981538 u | 150.36 u |
| Period | 3 | 6 |
| Group | 13 | N/A |
| Block | p | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s23p1 | [Xe]6s24f6 |
| Oxidation states | [-2, -1, 0, 1, 2, 3] | [0, 1, 2, 3] |
| Electronegativity (Pauling) | 1.61 | 1.17 |
| Electron affinity | 0.4328 eV | 0.156 eV |
| Density | 2700 kg/m³ | 7520 kg/m³ |
| Melting point | 660.287 °C | 1073.85 °C |
| Boiling point | 2518.85 °C | 1793.85 °C |
| Discovery year | 1825 | 1878 |