Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Rb Rubidium | Xe Xenon |
|---|---|---|
| Atomic Number | 37 lower | 54 lower |
| Symbol | Rb different | Xe different |
| Name | Rubidium different | Xenon different |
| Atomic Mass | 85.468 lower | 131.29 lower |
| Category | Alkali Metals different | Noble Gases different |
| Period | 5 same value | 5 same value |
| Group | 1 lower | 18 lower |
| Block | s-Block different | p-Block different |
| Standard State | Solid different | Gas different |
| Electronegativity | 0.82 lower | 2.6 lower |
| Atomic Radius | 303 higher | 216 higher |
| Ionization Energy | 4.177 lower | 12.13 lower |
| Electron Affinity | 0.468 no data | — no data |
| Oxidation States | +1 different | 0 different |
| Melting Point | 312.46 K (39.31 °C) higher | 161.36 K (-111.79 °C) higher |
| Boiling Point | 961 K (687.85 °C) higher | 165.03 K (-108.12 °C) higher |
| Density | 1.53 higher | 0.0059 higher |
| Electron Configuration | [Kr]5s1 different | [Kr]5s2 4d10 5p6 different |
| Year Discovered | 1861 different | 1898 different |
higher lower
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