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Atomic Structure

By 0001042564
  • 400

    Democritus

    Democritus theorized that everything is made of small, indivisible particles called "atomos."

  • John Dalton

    John Dalton
    Dalton said three things,
    1.) everything is made of atoms.
    2.) atoms can't be broken dowm.
    3.) atoms of each element are unique (different)

  • Jj Thompson

    Jj Thompson
    Experimented with the cathode ray tube, naming electrons. (Plum pudding model)

  • Earnest Rutherford

    Earnest Rutherford
    Said atoms are mostly empty with small, positive, dense nucleus'. Experimented with the gold foil experiment.

  • Neils Bohr

    Neils Bohr
    Bohr organized electrons into energy levels with the Bohr model.

  • Louis De Broglie

    Louis De Broglie
    Broglie introduces the wave/particle duaity of matter. (1921) Suggested particles could behave as waves & waves could behave as particles. Their related by the equation,
    Particles = momentum(p) wave = wavelength (w)
    W=h/p