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...Polyhedron contents lists available at sciencedirect journal homepage www elsevier com locate poly review rowofthe periodic table complete can we expect more new elements and if so when jan reedijk leiden institute of chemistry university p o box ra the netherlands article info abstract history in this perspective impact completion th row up to z by addition four received september elementsintheperiodictable nihonium moscovium tennessineandoganesson isdescribed alsothe accepted october methods how synthesize chemical difculties verifying such are briey discussed some speculations presented about possible element discoveries coming years keywords finally pathway iupac names determined illustrated most recent additions theauthor publishedbyelsevierltd thisisanopenaccessarticleundertheccbylicense http creativecommons org licenses tennessine oganesson introduction newelement generation discussion claiming validation naming final remarks soon claims for heavy there superheavy outer space co...