Chemisty Timeline

By hgrove_rdeck

  • Phosphorus

    Phosphorus
    Chemistry Phosphorus was found in 1669 in Germany by Hennig Brand.

  • Nickel

    Nickel
    Chemistry Nickel was found in 1751 in Sweden Axel Cronstedt.

  • John Dalton

    PB Kidz John Dalton thought atoms looked like solid spheres.

  • The Periodic Table

    The Periodic Table
    The Periodic TableChemical Elements Dmitri Mendeleev created the first periodic table in 1869.

  • Protons

    Protons
    Chemistry HistoryProton Eugene Goldstein discovered a positive particle, which he called a proton.

  • Marie Curie

    Marie Curie
    Women's History Marie Curie discovered polonium and then radium.

  • J. J. Thomson

    Chemical Heritage FoundationWikibooks J. J. Thomson thought the atom was a positively charged sphere with negatively charged electrons on the outside.

  • Ernest Rutherford

    The Encyclopedia of Science Ernest Rutherford thought that in the positively charged atom was a tiny nucleus and that the electrons are on the outside.

  • Niels Bohr

    Wikipedia Niels Bohr thought the atom was a small positively charged nucleus surrounded by electrons that orbited around the nucleus.
  • Period: to

    Timespan