bn:00006922n
Noun Concept
Categories: Carcinogens, long volume value, Nuclear materials, Nuclear fuels, Actinides
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thorium  Th  atomic number 90  Thorium processing  element 90
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Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Wikipedia
Chemical element with the atomic number of 90 Wikidata
Chemical element with symbol Th and atomic number 90. It is a silvery white actinide. OmegaWiki
A chemical element (symbol Th) with atomic number 90: a weakly radioactive, malleable, moderately hard silvery metal that tarnishes black when exposed to air. Wiktionary
Chemical element. Wiktionary (translation)
WordNet 3.0 & Open English WordNet
Wikipedia
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Wikidata
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Wiktionary
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OmegaWiki
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Wikidata Alias