History of the Atom Theory

By rliann
  • Democritus
    460 BCE

    Democritus

    Was the first one to think of what atoms were made of.
  • Dalton

    Dalton

    First one to describe atoms in a scientific way.
  • J.J. Thompson

    J.J. Thompson

    He explained how the atoms showed positive and negative electrons.
  • Ernest Rutherford

    Ernest Rutherford

    Shot the particles through gold foil for an experiment and some bounced back. They called him "Father of nuclear age".
  • Bohr

    Bohr

    Explains the electrons shell, and how they orbit.
  • Schrodinger

    Schrodinger

    He explained how the orbitals work.
  • Chadwick

    Chadwick

    Finished explaining the neutrons.
  • Modern post

    Modern post

    This kept discovering and contributing to the information we already had. (1930+)