Compare Element Properties
| Property | Tm Thulium | ? N/A |
|---|---|---|
| Atomic number | 69 | N/A |
| Symbol | Tm | N/A |
| Name | Thulium | N/A |
| Category | lanthanide | N/A |
| Standard Atomic Weight | 168.93422 u | N/A |
| Period | 6 | N/A |
| Group | N/A | N/A |
| Block | s | N/A |
| Phase at STP | solid | N/A |
| Electron configuration | [Xe]6s24f13 | N/A |
| Oxidation states | [0, 1, 2, 3] | N/A |
| Electronegativity (Pauling) | 1.25 | N/A |
| Electron affinity | 1.029 eV | N/A |
| Density | 9320 kg/m³ | N/A |
| Melting point | 1544.85 °C | N/A |
| Boiling point | 1949.85 °C | N/A |
| Discovery year | 1879 | N/A |