Home > Term: thulium
thulium
A bright, silvery, rare-earth chemical element. Thulium’s symbol is Tm, its atomic number is 69, and its atomic weight is 168.934. Thulium is used as a source of X-rays.
- Part of Speech: noun
- Industry/Domain: Aviation
- Category: Aeronautics
- Company: Aviation Supplies & Academics
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