DEVELOPMENT OF THE PARTICLE MODEL OF MATTER

By Titans777
  • 460 BCE

    DEMOCRITUS

    DEMOCRITUS
    ALL matter consists of invisible particles called atoms.

    atoms are indestructible.
  • 460 BCE

    ARISTOTLE

    ARISTOTLE
    hypothesised that matter are in continuous composition that can be broken into smaller pieces

  • ROBERT BROWN

    ROBERT BROWN
    observed that atoms are moving constantly and randomly in all direction this is known as brownain motion

  • JOHN DALTON

    JOHN DALTON
    suggested that compounds are formed by combination of two or more different kind of atoms.
    matter is made up of small discrete particle which are like little solid balls.

  • ALBERT EINSTEIN

    ALBERT EINSTEIN
    Analysis in which he devised a mathematical way to predict the size of both atoms and molecules.
    He discovered the general theory of relativity.

  • ALBERT EINSTEIN

    ALBERT EINSTEIN
    Analysis in which he devised a mathematical way to predict the size of both atoms and molecules.
    He discovered the general theory of relativity.