Hydrogen vs Aluminum
| Property | H Hydrogen | Al Aluminum |
|---|---|---|
| Atomic number | 1 | 13 |
| Symbol | H | Al |
| Name | Hydrogen | Aluminum |
| Category | nonmetal | post-transition-metal |
| Standard Atomic Weight | 1.007975 u | 26.981538 u |
| Period | 1 | 3 |
| Group | 1 | 13 |
| Block | s | p |
| Phase at STP | gas | solid |
| Electron configuration | 1s1 | [Ne]3s23p1 |
| Oxidation states | [-1, 1] | [-2, -1, 0, 1, 2, 3] |
| Electronegativity (Pauling) | 2.2 | 1.61 |
| Electron affinity | 0.75419 eV | 0.4328 eV |
| Density | 0.08988 kg/m³ | 2700 kg/m³ |
| Melting point | -259.34 °C | 660.287 °C |
| Boiling point | -252.87 °C | 2518.85 °C |
| Discovery year | 1766 | 1825 |