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History of Atomic Theory

By tess_longmire
  • 400

    Democritus discovers the atom

    Democritus discovers the atom
    DemocritusIn 400 B.C. Democritus discovers the Atom. He lived in Abdera, Greece
  • Period: 400 to

    Atomic Theory

    Timeline of the key figures in the world of Atomic Theory

  • John Dalton

    John Dalton
    John DaltonJohn Dalton reinstates Democritus' discovery of the atom. He lived in the UK

  • JJ Thomson

    JJ Thomson
    JJ ThomsonJJ Thomson discovered the Electron and isotopes. He lived in the UK

  • Niels Bohr

    Niels Bohr
    Niels BohrNiels Bohr made discoveries regarding Quanum mechanics. He made his own model of the atom in 1913. He lived in Denmark.

  • Ernest Rutherford

    Ernest Rutherford
    Ernest RutherfordErnest Rutherford discovered the Proton and developed his own model of the atom. He lived in New Zealand.

  • Werner Heisenberg

    Werner Heisenberg
    Werner HeisenbergWerner Heisenberg published a paper on Quantum Mechanics. He lived in Germany

  • James Chadwick

    James Chadwick
    James ChadwickJames Chadwick discovered the Neutron. He lived in the UK.