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Oganesson is a chemical element with the symbol Og and atomic number 118 and its most stable isotope has a mass number of 294. It was first synthesized in 2002 by a joint team of Russians and Americans. It was named after Yuri Oganesson, a major figure in the synthesis of many new elements. Oganesson is the heaviest element currently discovered in the Peroidic Table and the last element of period 7.[1]

References[change | change source]

  1. "It's Elemental - The Element Oganesson". education.jlab.org. Retrieved 2017-10-03.