| Attribute | Value |
|---|---|
| Symbol | Zr |
| Standard state | Solid |
| Atomic mass | 91.22 u |
| Electron configuration | [Kr]5s²4d² |
| Oxidation states |
|
| Electronegativity (pauling scale) | 1.33 |
| Atomic radius (van der waals) | 186 pm |
| Ionization energy | 6.634 eV |
| Electron affinity | 0.426 eV |
| Melting point | 2128 K |
| Boiling point | 4682 K |
| Density | 6.52 g/cm³ |
| Atomic number | 40 |
| Group name | Transition metal |
| Discovered | 1789 year |