Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Po Polonium | Cs Cesium |
|---|---|---|
| Atomic Number | 84 higher | 55 higher |
| Symbol | Po different | Cs different |
| Name | Polonium different | Cesium different |
| Atomic Mass | 208.9824 higher | 132.9055 higher |
| Category | Metalloids different | Alkali Metals different |
| Period | 6 same value | 6 same value |
| Group | 16 higher | 1 higher |
| Block | p-Block different | s-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 2 higher | 0.79 higher |
| Atomic Radius | 197 lower | 343 lower |
| Ionization Energy | 8.417 higher | 3.894 higher |
| Electron Affinity | 1.9 higher | 0.472 higher |
| Oxidation States | +4, +2 different | +1 different |
| Melting Point | 527 K (253.85 °C) higher | 301.59 K (28.44 °C) higher |
| Boiling Point | 1235 K (961.85 °C) higher | 944 K (670.85 °C) higher |
| Density | 9.32 higher | 1.93 higher |
| Electron Configuration | [Xe]6s2 4f14 5d10 6p4 different | [Xe]6s1 different |
| Year Discovered | 1898 different | 1860 different |
higher lower
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