Compare Elements
Compare two chemical elements side by side across 19 atomic and physical properties.
| Property | B Boron | Tl Thallium |
|---|---|---|
| Atomic Number | 5 lower | 81 lower |
| Symbol | B different | Tl different |
| Name | Boron different | Thallium different |
| Atomic Mass | 10.81 lower | 204.383 lower |
| Category | Metalloids different | Post-transition Metals different |
| Period | 2 lower | 6 lower |
| Group | 13 same value | 13 same value |
| Block | p-Block same value | p-Block same value |
| Standard State | Solid same value | Solid same value |
| Electronegativity | 2.04 higher | 1.62 higher |
| Atomic Radius | 192 lower | 196 lower |
| Ionization Energy | 8.298 higher | 6.108 higher |
| Electron Affinity | 0.277 higher | 0.2 higher |
| Oxidation States | +3 different | +3, +1 different |
| Melting Point | 2348 K (2074.85 °C) higher | 577 K (303.85 °C) higher |
| Boiling Point | 4273 K (3999.85 °C) higher | 1746 K (1472.85 °C) higher |
| Density | 2.37 lower | 11.8 lower |
| Electron Configuration | [He]2s2 2p1 different | [Xe]6s2 4f14 5d10 6p1 different |
| Year Discovered | 1808 different | 1861 different |
higher lower
Advertisement