Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Db Dubnium | Fr Francium |
|---|---|---|
| Atomic Number | 105 higher | 87 higher |
| Symbol | Db different | Fr different |
| Name | Dubnium different | Francium different |
| Atomic Mass | 268.126 higher | 223.0197 higher |
| Category | Transition Metals different | Alkali Metals different |
| Period | 7 same value | 7 same value |
| Group | 5 higher | 1 higher |
| Block | d-Block different | s-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | — no data | 0.7 no data |
| Atomic Radius | — no data | 348 no data |
| Ionization Energy | — no data | 3.9 no data |
| Electron Affinity | — no data | 0.47 no data |
| Oxidation States | 5, 4, 3 different | +1 different |
| Melting Point | — no data | 300 K (26.85 °C) no data |
| Boiling Point | — no data | — no data |
| Density | — no data | — no data |
| Electron Configuration | [Rn]7s2 5f14 6d3 different | [Rn]7s1 different |
| Year Discovered | 1967 different | 1939 different |
higher lower
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