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Ununtrium (pronounced /juːˈnʌntriəm/), or eka-thallium, is the temporary name of a synthetic element in the periodic table that has the temporary symbol Uut and has the atomic number 113. It comes from the alpha decay (release of a helium nucleus) of ununpentium. Following periodic trends it is expected to be a soft, silvery highly reactive metal, rather like sodium.
On February 1, 2004, the discovery of ununtrium and ununpentium were reported by a team composed of Russian scientists at Dubna (Joint Institute for Nuclear Research), and American scientists at the Lawrence Livermore National Laboratory.
In May 2006, at the Joint Institute for Nuclear Research, the synthesis of this element was confirmed by another method (the chemical identifying on final products of decay of element).
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Ununtrium". A list of authors is available in Wikipedia.|