History of the Atom Timeline

By Cyrese Verdun

  • Democritus (460 BC)

    1. Atoms are industructible, atoms are solid but invisible.
    2. oberrservations and natural curiosity.
    3. something smooth.

  • Dalton

    1. Elements consisted of tiiny particles called atoms.
    2. Meteorological observations.
    3. sphere embeded with electrons.
  • Thomson

    Thomson

    1. the dectron
    2. expirements designed to study the nature of electric discharge in a high vaccum cathode.
    3. plum pudding.

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