Jisho

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Noun, Noun which may take the genitive case particle 'no'
1. thallium (Tl)
Wikipedia definition
2. ThalliumThallium is a chemical element with the symbol Tl and atomic number 81. This soft gray poor metal resembles tin but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium independently in 1861 by the newly developed method of flame spectroscopy. Each discovered the new element in residues of sulfuric acid production.
Read “Thallium” on English Wikipedia
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Read “Thallium” on DBpedia

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