Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Po Polonium | Ba Barium |
|---|---|---|
| Atomic Number | 84 higher | 56 higher |
| Symbol | Po different | Ba different |
| Name | Polonium different | Barium different |
| Atomic Mass | 208.9824 higher | 137.33 higher |
| Category | Metalloids different | Alkaline Earth Metals different |
| Period | 6 same value | 6 same value |
| Group | 16 higher | 2 higher |
| Block | p-Block different | s-Block different |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 2 higher | 0.89 higher |
| Atomic Radius | 197 lower | 268 lower |
| Ionization Energy | 8.417 higher | 5.212 higher |
| Electron Affinity | 1.9 no data | — no data |
| Oxidation States | +4, +2 different | +2 different |
| Melting Point | 527 K (253.85 °C) lower | 1000 K (726.85 °C) lower |
| Boiling Point | 1235 K (961.85 °C) lower | 2170 K (1896.85 °C) lower |
| Density | 9.32 higher | 3.62 higher |
| Electron Configuration | [Xe]6s2 4f14 5d10 6p4 different | [Xe]6s2 different |
| Year Discovered | 1898 different | 1808 different |
higher lower
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