▁September ▁ 2 9 , ▁ 1 9 5 9 ) ▁is ▁an ▁American ▁politician ▁in ▁the ▁state ▁of ▁Minnesota . ▁He ▁served ▁in ▁the ▁Minnesota ▁House ▁of ▁Representatives . ▁ ▁References ▁ ▁Category : M embers ▁of ▁the ▁Minnesota ▁House ▁of ▁Representatives ▁Category : M inn esota ▁Republic ans ▁Category : 1 9 5 9 ▁birth s ▁Category : L iving ▁people <0x0A> </s> ▁Y uri ▁T sol akov ich ▁O gan ess ian ▁( ▁; ▁ ▁born ▁ 1 4 ▁April ▁ 1 9 3 3 ) ▁ ▁is ▁a ▁Russian - born ▁Armen ian ▁nuclear ▁phys ic ist ▁who ▁is ▁considered ▁the ▁world ' s ▁leading ▁research er ▁in ▁super he avy ▁chemical ▁elements . ▁He ▁led ▁the ▁discovery ▁of ▁these ▁elements ▁in ▁the ▁periodic ▁table . ▁He ▁succeeded ▁Georg y ▁Fly or ov ▁as ▁director ▁of ▁the ▁F ler ov ▁Labor atory ▁of ▁N uc lear ▁Re actions ▁at ▁the ▁J oint ▁Institute ▁for ▁N uc lear ▁Research ▁in ▁ 1 9 8 9 ▁and ▁is ▁now ▁its ▁scientific ▁leader . ▁The ▁heav iest ▁element ▁on ▁the ▁periodic ▁table , ▁og an ess on , ▁is ▁named ▁after ▁him , ▁only ▁the ▁second ▁time ▁that ▁an ▁element ▁was ▁named ▁after ▁a ▁living ▁scient ist ▁( the ▁other ▁being ▁se ab org ium ). ▁ ▁Personal ▁life ▁Y uri ▁T sol akov ich ▁O gan ess ian ▁was ▁born ▁in ▁Rost ov - on - Don , ▁Russia , ▁on ▁ 1 4 ▁April ▁ 1 9 3 3 ▁to