Yttrium vs Zirconium
| Property | Y Yttrium | Zr Zirconium |
|---|---|---|
| Atomic number | 39 | 40 |
| Symbol | Y | Zr |
| Name | Yttrium | Zirconium |
| Category | transition-metal | transition-metal |
| Standard Atomic Weight | 88.90584 u | 91.224 u |
| Period | 5 | 5 |
| Group | 3 | 4 |
| Block | s | s |
| Phase at STP | solid | solid |
| Electron configuration | [Kr]5s24d1 | [Kr]5s24d2 |
| Oxidation states | [0, 1, 2, 3] | [1, 2, 3, 4] |
| Electronegativity (Pauling) | 1.22 | 1.33 |
| Electron affinity | 0.307 eV | 0.426 eV |
| Density | 4470 kg/m³ | 6520 kg/m³ |
| Melting point | 1521.85 °C | 1854.85 °C |
| Boiling point | 3344.85 °C | 4408.85 °C |
| Discovery year | 1794 | 1789 |