Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Zr Zirconium | Hf Hafnium |
|---|---|---|
| Atomic Number | 40 lower | 72 lower |
| Symbol | Zr different | Hf different |
| Name | Zirconium different | Hafnium different |
| Atomic Mass | 91.22 lower | 178.49 lower |
| Category | Transition Metals same value | Transition Metals same value |
| Period | 5 lower | 6 lower |
| Group | 4 same value | 4 same value |
| Block | d-Block same value | d-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 1.33 higher | 1.3 higher |
| Atomic Radius | 186 lower | 212 lower |
| Ionization Energy | 6.634 lower | 6.825 lower |
| Electron Affinity | 0.426 no data | — no data |
| Oxidation States | +4 same value | +4 same value |
| Melting Point | 2128 K (1854.85 °C) lower | 2506 K (2232.85 °C) lower |
| Boiling Point | 4682 K (4408.85 °C) lower | 4876 K (4602.85 °C) lower |
| Density | 6.52 lower | 13.3 lower |
| Electron Configuration | [Kr]5s2 4d2 different | [Xe]6s2 4f14 5d2 different |
| Year Discovered | 1789 different | 1923 different |
higher lower
Advertisement