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When was Oganesson officially recognized as an element?

  • 10 Dec 2016

  • 14 April 1933

  • 1 Nov 2000

  • 20 July 1999

Answer

Oganesson was officially recognized as an element on 10 December 2016, after being added to the periodic table of elements by the International Union of Pure and Applied Chemistry (IUPAC). The element was named after Russian nuclear physicist Yuri Oganessian, who played a leading role in its discovery. Oganesson is a synthetic element with the atomic number 118, and it is the heaviest known element.
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