Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Ra Radium | Rf Rutherfordium |
|---|---|---|
| Atomic Number | 88 lower | 104 lower |
| Symbol | Ra different | Rf different |
| Name | Radium different | Rutherfordium different |
| Atomic Mass | 226.0254 lower | 267.122 lower |
| Category | Alkaline Earth Metals different | Transition Metals different |
| Period | 7 same value | 7 same value |
| Group | 2 lower | 4 lower |
| Block | s-Block different | d-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 0.9 no data | — no data |
| Atomic Radius | 283 no data | — no data |
| Ionization Energy | 5.279 no data | — no data |
| Electron Affinity | — no data | — no data |
| Oxidation States | +2 different | +4 different |
| Melting Point | 973 K (699.85 °C) no data | — no data |
| Boiling Point | 1413 K (1139.85 °C) no data | — no data |
| Density | 5 no data | — no data |
| Electron Configuration | [Rn]7s2 different | [Rn]7s2 5f14 6d2 different |
| Year Discovered | 1898 different | 1964 different |
higher lower
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