Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Zirconium | |
| Electron Configuration | 2,8,18,10,2 |
| Electron Configuration | [Kr] 4d2 5s2 |
| Electronegativity | 1.33 |
| Enthalpy of Fusion | 23 kJ mol-1 |
| Enthalpy of Vaporisation | 566.7 kJ mol-1 |
| Heat Capacity | 25.36 J mol-1 K-1 |
| Thermal Conductivity | 22.6 W m-1 K-1 |
| Thermal Expansion | 5.7 μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 421 Ω m |
| Speed of sound | 3800 m s-1 |
| Young's modulus | 68 GPa |
| Shear modulus | 3800 GPa |
| Poisson ratio | 0.34 |
| Mohs hardness | 5.0 |
| Vickers hardness | 903 MPa |
| Brinell hardness | 650 MPa |
| Atomic Radii |
|
| Atomic Radius
|
155 pm |
| Bohr Radius
|
206 pm |
| Covalent Radius
|
148 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Zr+4 |
| Other
|
Zr0, Zr+1, Zr+2, Zr+3 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
660 |
| M+ - M2+ |
1267 |
| M2+ - M3+ |
2218 |
| M3+ - M4+ |
3313 |
| M4+ - M5+ |
7860 |
| M5+ - M6+ |
9500 |
| M6+ - M7+ |
11200 |
| M7+ - M8+ |
13800 |
| M8+ - M9+ |
15700 |
| M9+ - M10+ |
17500 |