Atomic Theory Timeline

  • 400


    Discovered and named the atom
  • 400

    The Greeks

    The Greeks
    played an important role in modern day science
  • Period: 400 to

    Atomic Theory

  • Antoine Laviosier

    Antoine Laviosier
    made a long list of discoveries including that the crystalline form of carbon was diamonds and that oxygen is present in acids
  • John Dalton

    John Dalton
    discovered Dalton's Atomic Theories
  • W.K. Roentgen

    W.K. Roentgen
    conducted an experiment on cathode rays and discovered x-rays
  • Marie Curie

    Marie Curie
    discovered methods of separating radium from radioactive remains
  • Henri Becquerel

    Henri Becquerel
    Discovered that rays that emitted uranium produced ionized gas
  • J.J. Thompson

    J.J. Thompson
    created the Plum Pudding Model
  • Robert Milikan

    Robert Milikan
    performed the oil drop experiment
  • Ernest Rutherford

    Ernest Rutherford
    composed the gold foil experiment
  • Max Planck

    Max Planck
    created an equation describing the black body spectrum
  • Neils Bohr

    Neils Bohr
    Created the Bohr Planetary Model
  • Hans Geiger

    Hans Geiger
    invented the Geiger Counter
  • Werner Heisenberg

    Werner Heisenberg
    created the theory of quantum mechanics
  • Enrico Fermi

    Enrico Fermi
    discovered the Fermi-Dirac statistics that add on to the Pauli Exclusion Principle
  • Erwin Schrodinger

    Erwin Schrodinger
    created the quantum mechanical model
  • James Chadwick

    James Chadwick
    Discovered the neutron