thulium
PubChem Notes:
Thulium Thulium. An element of the rare earth family of metals. It has the atomic symbol Tm, atomic number 69, and atomic weight 168.93.
MediLexicon thulium - Medical Dictionary Definition for Term 'thulium'
[1. A metallic element of the lanthanide series, atomic no. 69, atomic wt. l68.93421.
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