Events
Democritus (father of the atom)LeucippusAristotlePierre GassendiRobert Boyle (Father of Modern Chemistry)Antoine Lavoisier (element can not be broken down by chemical methods)John Dalton (Matter is made up by atoms)Johann Josef LoschmidtJean Baptiste‐PerrinHenri Becquerel led Pierre and Marie CurieSir Joseph John “J.J.” ThomsonErnest RutherfordErwin SchrödingerWerner HeisenbergHantaro Nagaoka (Japan)Niels Bohr (who joined Rutherford's team)Henry MoseleyJames ChadwickJohann Wolfgang DobereinerAlexandre‐Emile Béguyer de ChancourtoisStanislao CannizzaroJohn NewlandsGilbert Lewis and Irving LangmuirDmitri MendeleevLothar MeyerPaul‐Emile Lecoq de BoisbaudranWilliam RamsayGlen
SeaborgYuri Oganessian (and his group in Russia)
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