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What are thulium's characteristics?

Answer:
Thulium (Tm, atomic number 69) is a lustrous grey lanthanide metal that is ductile enough at room temperature to be sliced with a knife. Thulium is a scarce element, reacts readily with hot water but slowly with cold water, and has the ability to produce x-rays if it has been irradiated.
First answer by Pittsburghtech. Last edit by Pittsburghtech. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 1 [recommend question].

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