Atomic Theory webquest Project

By polp1
  • 460

    Atom named by Democritus

    (460 B.C.) Democritus decided that all mater was made of tiny indivisible particles. These particles were shaped differently based on the proporties of the substance which they created.
  • 461

    Arisotles veiw of the universe

    (384 B.C.) Aristotole belived that the universe was made of four qualities that described all substances. They were dryness, wetness, heat and cold.
  • Oct 1, 1066

    The norman conquest of britain

  • Oct 1, 1215

    Magna carta signed

  • Oct 5, 1348

    the black plauge begins

  • Oct 1, 1543

    copernicuses heliocentric univese

  • newtons laws of universal gravitation

  • joeseph proust

    created the law of deffinite poportions, which stated that the same amounts of the same element have the same number of elements in them.
  • John Dalton

    John Dalton discovered that different elements had different masses. He also stated that one mass unit was equal to one hydrogen atom.
  • Ode to Joy by Beethoven written

  • darwins origin of species

  • henri Becquerel's discovery of radiation

    While trying to prove that x-rays were emited with light, Henri accidentally discovered radiation, when he placed uranium on wave sensitive plates.
  • J.J. Thomson

    Thomson created the Plum pudding model of an atom, in which there is a cloud of protons and electrons. He discoved electrons simultaniously.
  • Ernest Rutherford

    Rutherford discovered forms of radio active decay, including alpha and beta decay. He sugessted a model of an atom, where teh mass was located in the center nucleus.
  • Neils bohr's model

    In 1913 Neils Bohr created his theory of atomic structure, which was a planetary model of electrons around the neucleus of an atom.
  • robert Millikan

    he found the correct chrge and mass of electrons.
  • Max planck

    this is when Max Planck wn the nobel prize for the origin of Quantm theory.
  • Werner Heisenberg

    Heisenberg intorduced the matrix mechanics model. It was too complicated, and rejected.
  • Erwin Schrodinger

    Schrodinger treated atoms as waves rather than as mass, called waves of mass. He also created Schrodinger's equation which shows the behavior of these waves
  • Louis de Broglie

    de Broglie created an equation specifing the wave length based on planck's constant diveded by the momentum of the electron.
  • James chadwick

    James chadwick first discovered the neutron in the neucleus. He observed its neutral charge, and its weight.
  • Ceaser killed

    (44 bc)
  • Sgt. Peppers Lonley Hearts Club Band was released

  • mayans predict the end of the world as we know it

  • Koryo Dynasty of Korea begins

    This is the dynasty from which Korea derrived its name