| Element | Zirconium |
| Symbol | Zr |
| Atomic Number | 40 |
| Molar Mass | 91.22 gmol-1 |
| Electron Configuration | [Kr]4d25s2 |
| Normal State | solid metal |
| Density @STP | 6.51 g cm-3 |
| Melting Point | 1855oC |
| Boiling Point | 4409oC |
| Stable Isotopes | 90Zr, 91Zr, 92Zr, 94Zr, 96Zr |
| Atomic Radius | 160 pm |
| Ionic Radius | 87 (4+) pm |
| Electronegativity (Pauling) | 1.33 |
| Ionization Energy (1st) | 660 kJ mol-1 |
| Ionization Energy (2nd) | 1267 kJ mol-1 |
| Ionization Energy (3rd) | 2218 kJ mol-1 |
| Molar Heat Capacity | 25.4 J K-1mol-1 |
| Standard Molar Entropy | 39 J K-1mol-1 |
| Enthalpy of Fusion | 23 kJ mol-1 |
| Enthalpy of Vapourization | 581.6 kJ mol-1 |
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