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Tm
Thulium
#69 · Lanthanide
| Mass | 168.93 u |
| Density | 9.321 g/cm³ |
| Melting | 1818.0 K |
| Boiling | 2223.0 K |
| Electronegativity | 1.25 |
| Ionization Energy | 596.7 kJ/mol |
| Atomic Radius | 176.0 pm |
| Block | f-block |
| State (RT) | Solid |
| Config | [Xe] 4f13 6s2 |