Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Cs Cesium | Ba Barium |
|---|---|---|
| Atomic Number | 55 lower | 56 lower |
| Symbol | Cs different | Ba different |
| Name | Cesium different | Barium different |
| Atomic Mass | 132.9055 lower | 137.33 lower |
| Category | Alkali Metals different | Alkaline Earth Metals different |
| Period | 6 same value | 6 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 | 0.79 lower | 0.89 lower |
| Atomic Radius | 343 higher | 268 higher |
| Ionization Energy | 3.894 lower | 5.212 lower |
| Electron Affinity | 0.472 no data | — no data |
| Oxidation States | +1 different | +2 different |
| Melting Point | 301.59 K (28.44 °C) lower | 1000 K (726.85 °C) lower |
| Boiling Point | 944 K (670.85 °C) lower | 2170 K (1896.85 °C) lower |
| Density | 1.93 lower | 3.62 lower |
| Electron Configuration | [Xe]6s1 different | [Xe]6s2 different |
| Year Discovered | 1860 different | 1808 different |
higher lower
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