Riggs- Dead Guy project

  • 101

    Thales 620-546 BC

    He was the first to investigate the basic principles of atoms.
  • 101

    Aristotle 340 BC

    He thought all things were made up of fire, air, water, and earth.
  • 101

    Democritus 440 BC

    He developed the first atomic theory.
  • Newton

    He contributed to Democritus' atomic theory.
  • Dalton

    He developed atomism, a new atomic theory.
  • Becquerel

    He discovered radioactivity.
  • Thompson

    He discovered the electron.
  • Millikan

    He found the charge of an electron.
  • Rutherford

    He discovered the proton and thought up the nucleus.
  • Bohr

    He came up with the electron orbit theory.
  • Aston

    He discovered isotopes.
  • Schrodinger

    He used math to determine the probability of an electron being in a certain place in an atom.
  • Chadwick

    He discovered the neutron.