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Tm
Thulium
#69 · Lanthanide
| I-Mass | 168.93 u |
| Uxinano | 9.321 g/cm³ |
| Uthuthu | 1818.0 K |
| Ukomisa | 2223.0 K |
| Electronegativity | 1.25 |
| Ionization energy | 596.7 kJ/mol |
| Atomic radius: | 176.0 pm |
| I-Block | f- iblock |
| Ilizwe (RT) | I-Solid |
| Qwalasela | [Xe] 4f13 6s2 |