Sarah Goben - Famous Dead Guys Project

  • 101

    Thales- 620 BC

    The first person to think of the atom.
  • 101

    Democritus- 440 BC

    Democritus- 440 BC
    The first one to come up with the name "atom"
  • 101

    Aristotle- 340 BC

    Aristotle- 340 BC
    Believed in the four elements fire, air, water, and earth instead of the atom.
  • Isaac Newton

    Isaac Newton
    He contibuted to the atomic theory (atoms are held together by attractions or forces)
  • Dalton

    Dalton
    He came up with Dalton's atomic theory.
  • Henri Becquerel

    Henri Becquerel
    He figured out that elements could be radioactive.
  • J.J. Thomson

    J.J. Thomson
    He discovered electrons and came up with plum pudding atomic model.
  • Milikan

    Milikan
    He did the Oil Drip experiment and found charges of individual electrons.
  • Rutherford

    Rutherford
    He did the Gold Foil experiment and was credited for the discovery of the proton.
  • Bohr

    Bohr
    He contributed to theory on electrons and a primitive hydrogen model.
  • Francis Aston

    Francis Aston
    He invented the Mass Spectrograph and discovered isotopes.
  • Schrodinger

    Schrodinger
    He used math equations to find the probability an electron would be in a certain position. (Quantum Mechanical Model of the Atom)
  • Chadwick

    Chadwick
    He discovered the neutron.