F7ad985e 3211 40f8 aed2 10621707160d

The History of The Atom

By Isaiahcaji1
  • 404 BCE

    Democritus

    Democritus
    Developed the concept of the “atom”. Remembered for his formulation of the atomic theory.

  • John Dalton

    John Dalton
    Discovered the modern atomic theory. Introduced the atomic theory into chemistry. Contributed in todays world with his research of colorblindness.

  • J.J. Thompson

    J.J. Thompson
    Credited with the discovery of the identity of the electron. Experimented with cathode ray.

  • Ernest Rutherford

    Ernest Rutherford
    Became known as the father of nuclear physics. Awarded the 1908 Nobel Prize in Chemistry for his theory of atomic structure. Also known for his gold foil experiment in 1911.

  • Neils Bohr

    Neils Bohr
    Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Made important contributions to the understanding of the structure and energy of the atom.