Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Fr Francium | Ra Radium |
|---|---|---|
| Atomic Number | 87 lower | 88 lower |
| Symbol | Fr different | Ra different |
| Name | Francium different | Radium different |
| Atomic Mass | 223.0197 lower | 226.0254 lower |
| Category | Alkali Metals different | Alkaline Earth Metals different |
| Period | 7 same value | 7 same value |
| Group | 1 lower | 2 lower |
| Block | s-Block same value | s-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 0.7 lower | 0.9 lower |
| Atomic Radius | 348 higher | 283 higher |
| Ionization Energy | 3.9 lower | 5.279 lower |
| Electron Affinity | 0.47 no data | — no data |
| Oxidation States | +1 different | +2 different |
| Melting Point | 300 K (26.85 °C) lower | 973 K (699.85 °C) lower |
| Boiling Point | — no data | 1413 K (1139.85 °C) no data |
| Density | — no data | 5 no data |
| Electron Configuration | [Rn]7s1 different | [Rn]7s2 different |
| Year Discovered | 1939 different | 1898 different |
higher lower
Advertisement