Thulium
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| Symbol | Tm |
|---|---|
| Atomic number | 69 |
| Atomic mass | 168. 93421 u |
| Electron configuration | [Xe] 4f136s2 |
| Discoverer | Per Teodor Cleve |
| Did you know | It was discovered in 1879 by Per Teodor Cleve. |
| Date of Reg. | |
| Date of Upd. | |
| ID | 961544 |
About Thulium
Thulium is a chemical element with the symbol Tm and atomic number 69. It is the thirteenth and third-last element in the lanthanide series.
Thulium Photos
