Atom

  • Solid Sphere Model

    Solid Sphere Model

    John Dalton believed atoms were indivisible. A given element is identical and compounds are combinations of different atoms.
  • Plum Pudding Model

    Plum Pudding Model

    Thomson discovered electrons. Atoms are composed of electrons scattered throughout a cloud of positive charge.
  • Nuclear Model

    Nuclear Model

    Empty space with positive charge in the center.
  • Planetary Model

    Planetary Model

    A modified version of the Rutherfords model by electrons moving around the nucleus.
  • Quantum Model

    Quantum Model

    Electrons do not move in set paths around the nucleus but in waves.