Jisho

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Noun
1. ununtrium (Uut)Obsolete term, See also ニホニウム
Wikipedia definition
2. UnuntriumUnuntrium is the temporary name of a synthetic element with the temporary symbol Uut and atomic number 113. It is placed as the heaviest member of the group 13 (IIIA) elements although a sufficiently stable isotope is not known at this time that would allow chemical experiments to confirm its position as a heavier homologue to thallium. It was first detected in 2003 in the decay of ununpentium and was synthesized directly in 2004. Only fourteen atoms of ununtrium have been observed to date.
Read “Ununtrium” on English Wikipedia
Read “ウンウントリウム” on Japanese Wikipedia
Read “Ununtrium” on DBpedia

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