The History of the Model of the Atom

By Reid Kuenzi
  • 465 BCE

    Model of the Atom: Democritus

    Model of the Atom: Democritus
    Democritus came up with the following atomic theory: 1.All matter consists of invisible particles called atoms.
    2. Atoms are indestructible.
    3. Atoms are solid but invisible.
    4. Atoms are homogenous.
    5. Atoms differ in size, shape, mass, position, and arrangement.
    ->Solids are made of small, pointy atoms.
    ->Liquids are made of large, round atoms.
    ->Oils are made of very fine, small atoms that can easily slip past each other.