Gallium vs Strontium
| Property | Ga Gallium | Sr Strontium |
|---|---|---|
| Atomic number | 31 | 38 |
| Symbol | Ga | Sr |
| Name | Gallium | Strontium |
| Category | post-transition-metal | alkaline-earth-metal |
| Standard Atomic Weight | 69.723 u | 87.62 u |
| Period | 4 | 5 |
| Group | 13 | 2 |
| Block | p | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s23d104p1 | [Kr]5s2 |
| Oxidation states | [-5, -4, -3, -2, -1, 0, 1, 2, 3] | [1, 2] |
| Electronegativity (Pauling) | 1.81 | 0.95 |
| Electron affinity | 0.3 eV | 0.052 eV |
| Density | 5910 kg/m³ | 2640 kg/m³ |
| Melting point | 29.76 °C | 776.85 °C |
| Boiling point | 2203.85 °C | 1381.85 °C |
| Discovery year | 1875 | 1792 |