bn:00006922n
Noun Concept
Categories: Chemical elements, long volume value, Nuclear fuels, Nuclear materials, Actinides
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thorium  Th  atomic number 90  Thorium processing  90Th
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Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Wikipedia
A chemical element Wikipedia Disambiguation
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