Compare Element Properties
| Property | Tl Thallium | ? N/A |
|---|---|---|
| Atomic number | 81 | N/A |
| Symbol | Tl | N/A |
| Name | Thallium | N/A |
| Category | post-transition-metal | N/A |
| Standard Atomic Weight | 204.3835 u | N/A |
| Period | 6 | N/A |
| Group | 13 | N/A |
| Block | p | N/A |
| Phase at STP | solid | N/A |
| Electron configuration | [Xe]6s24f145d106p1 | N/A |
| Oxidation states | [-5, -2, -1, 1, 2, 3] | N/A |
| Electronegativity (Pauling) | 1.62 | N/A |
| Electron affinity | 0.377 eV | N/A |
| Density | 1.180000e+4 kg/m³ | N/A |
| Melting point | 303.85 °C | N/A |
| Boiling point | 1472.85 °C | N/A |
| Discovery year | 1861 | N/A |