#Clear printable periodic table of elements series In Nov 2018, a provisional report ON THE DISCOVERY OF NEW ELEMENTS was released by IUPAC/IUPAP. Criteria and guidelines for establishing priority of discovery of potential new elements are presented. While an element can have been claimed, before the claim has been validated and before the element is formally named, the element has a temporary name and symbol. The pertinent recommendations setting-up that systematic nomenclature was published in 1978 see PAC 1979, Vol. In result, that is how, in March 2016, element 113 was called ununtrium or with the symbol Uut.
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