The history of the atom

By mathewt6
  • democritus
    400

    democritus

    Democritus claimed that everything is made up of atoms.
  • Period: 400 to

    scientist

  • John Dalton

    John Dalton

    John Dalton discovered that elements are only able to combine atomically when they are in fixed ratios.
  • J,J. Thompson

    J,J. Thompson

    Thomson was the first to suggest that the fundamental unit was more than 1,000 times smaller than an atom, suggesting the subatomic particle now known as the electron.

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