A soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands. Synonyms: atomic number 90, Th.
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Words linked to "Thorium" : metal, thorite, thoriate, Th, atomic number 90, monazite, thorium-228, radiothorium, metallic element |
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