Atoms and the Periodic Table

By 20polittes0925
  • Period: to

    Atomic Theory

    Years are correct, dates are incorrect and unknown.

  • John Dalton

    His theory stated that all matter is made up of atoms. (Date unknown, random date used, year is correct)

  • J.J. Thomson

    Atoms have electrons, negatively charged.

  • Ernest Rutherford

    That atoms have a nucleus, the positively charged particles are called Protons.