Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | Tl Thallium | Nh Nihonium |
|---|---|---|
| Atomic Number | 81 lower | 113 lower |
| Symbol | Tl different | Nh different |
| Name | Thallium different | Nihonium different |
| Atomic Mass | 204.383 lower | 286.182 lower |
| Category | Post-transition Metals same value | Post-transition Metals same value |
| Period | 6 lower | 7 lower |
| Group | 13 same value | 13 same value |
| Block | p-Block same value | p-Block same value |
| Standard State | Solid different | Expected to be a solid different |
| Electronegativity | 1.62 no data | — no data |
| Atomic Radius | 196 no data | — no data |
| Ionization Energy | 6.108 no data | — no data |
| Electron Affinity | 0.2 no data | — no data |
| Oxidation States | +3, +1 no data | — no data |
| Melting Point | 577 K (303.85 °C) no data | — no data |
| Boiling Point | 1746 K (1472.85 °C) no data | — no data |
| Density | 11.8 no data | — no data |
| Electron Configuration | [Xe]6s2 4f14 5d10 6p1 different | [Rn]5f14 6d10 7s2 7p1 (predicted) different |
| Year Discovered | 1861 different | 2004 different |
higher lower
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