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|
name |
Thulium |
latin |
Thulium |
french |
Thulium |
german |
Thulium |
symbol |
Tm |
proton number |
69 |
atomic weight |
168.93421 |
Pauling electronegativity |
1.25 |
electronic configuration |
[Xe] 4f135d06s2 >> show long |
melting point |
1818 K, 1545°C, 2813°F |
boiling point |
2223 K, 1950°C, 3542°F |
group |
- |
period |
6 |
state (by 20°C) |
solid |
oxidation states |
+3 |
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Discoverer
Year of discovery |
Discoverer |
1879 |
Per T. Cleve |
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