amaraltimeline

By nick.pluff4

  • Democritus

    Democritus discovered the atom in the late 1600's.

  • John Dalton

    Proposed an "atomic theory" with spherical solid atoms based upon measurable properties of mass.

  • JJ Thomson

    Thomson used a CRT to expirementaly determine the charge to mass ratio.

  • Ernest Rutherford

    studied rasiations emiited from uranium and thorium and named them "Alpha" and "Beta."

  • Max Planck

    He used the idea of quanta (discrete units of energy) to explain hot glowing matter.

  • Albert Einstein

    Published the famous equation:E=mc 2

  • Erwin Shrodinger

    Viewed electrons as continuous clouds and introduced "wave mechanics" as a mathematical model of the atom.

  • James Chadwick

    Using alpha particles discovered a neutral atomic particle with a mass close to a proton. which means he discoved the neutron.