Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Rf Rutherfordium | Hf Hafnium |
|---|---|---|
| Atomic Number | 104 higher | 72 higher |
| Symbol | Rf different | Hf different |
| Name | Rutherfordium different | Hafnium different |
| Atomic Mass | 267.122 higher | 178.49 higher |
| Category | Transition Metals same value | Transition Metals same value |
| Period | 7 higher | 6 higher |
| 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 | — no data | 1.3 no data |
| Atomic Radius | — no data | 212 no data |
| Ionization Energy | — no data | 6.825 no data |
| Electron Affinity | — no data | — no data |
| Oxidation States | +4 same value | +4 same value |
| Melting Point | — no data | 2506 K (2232.85 °C) no data |
| Boiling Point | — no data | 4876 K (4602.85 °C) no data |
| Density | — no data | 13.3 no data |
| Electron Configuration | [Rn]7s2 5f14 6d2 different | [Xe]6s2 4f14 5d2 different |
| Year Discovered | 1964 different | 1923 different |
higher lower
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