Atoms

History of the Atom Theory

By Ra ul
  • 460 BCE

    Democritus

    Democritus
    Made the Democritus' model which represents the particle.

  • Dalton

    Dalton
    First to describe atoms in a modern, scientific sense.

  • Thomson

    Thomson
    Designed the Thomson's Plum Pudding model.

  • Rutherford

    Rutherford
    He shot some particles through gold foil, and some bounced back.

  • Bohr

    Bohr
    Discovered the electron shell.

  • Schrödinger

    Schrödinger
    Discovered subshells and that shells are actually orbitals.

  • Chadwick

    Chadwick
    He discovered neutrons