Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Po Polonium | O Oxygen |
|---|---|---|
| Atomic Number | 84 higher | 8 higher |
| Symbol | Po different | O different |
| Name | Polonium different | Oxygen different |
| Atomic Mass | 208.9824 higher | 15.999 higher |
| Category | Metalloids different | Reactive Nonmetals different |
| Period | 6 higher | 2 higher |
| Group | 16 same value | 16 same value |
| Block | p-Block same value | p-Block same value |
| Standard State | Solid different | Gas different |
| Electronegativity | 2 lower | 3.44 lower |
| Atomic Radius | 197 higher | 152 higher |
| Ionization Energy | 8.417 lower | 13.618 lower |
| Electron Affinity | 1.9 higher | 1.461 higher |
| Oxidation States | +4, +2 different | -2 different |
| Melting Point | 527 K (253.85 °C) higher | 54.36 K (-218.79 °C) higher |
| Boiling Point | 1235 K (961.85 °C) higher | 90.2 K (-182.95 °C) higher |
| Density | 9.32 higher | 0.0014 higher |
| Electron Configuration | [Xe]6s2 4f14 5d10 6p4 different | [He]2s2 2p4 different |
| Year Discovered | 1898 different | 1774 different |
higher lower
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