Index

Development of the particle model of matter

  • 460 BCE

    Democritus

    Democritus
    He introduced ,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
  • Period: 460 BCE to 370 BCE

    Democritus

    He was one of the most remarkable greek scientists of history and still he is remembered for his formulation in atomic theory