Oganesson is a synthetic chemical element with the symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow in Russia, by a joint team of Russian and American scientists. In December 2015, it was recognized as one of four new elements by the Joint Working Party of the international scientific bodies IUPAC and IUPAP. It was formally named on 28 November 2016. Zita iri rinoenderana netsika yekukudza musayendisiti, munyaya iyi nyanzvi yezve nyukiliya Yuri Oganessian, uyo akaita basa rinotungamira mukuwanikwa kwezvinhu zvinorema kwazvo mu periodic table. Chimwe chezvinhu zviviri chete zvakapiwa zita remunhu aive mupenyu panguva iyoyo, chimwe chiri seaborgium; ndiyowo chete chinhu chine mazita akakwirira nhasi.
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