| 168.9342 Atomic Weight | |
| 69 Atomic Number | 3, 2 Oxidation States |
| 2223 Boiling Point, K | |
| 1818 Melting Point, K | Tm Symbol |
| 9.32 Density at 300K | |
| [Xe] 4f13 6s2
Electron Configuration | |
| Thulium | |
| Tm Symbol | hcp Crystal Structure |
| 1.56 Covalent Radius | 1.25 Electronegativity |
| 1.77 Atomic Radius | 191 Heat of Vaporization |
| 18.1 Atomic Volume | 16.8 Heat of Fusion |
| 6.184 Ionization Potential | 1.3 Electrical Conductivity |
| 0.16 Specific Heat Capacity | 16.8 Thermal Conductivity |