Atomic Model

  • Period: to

    Atomic Timeline

  • Dalton Model

    Dalton Model
    Dalton believed that atoms were tiny and indestructible particles that had no internal strucutre. He believed atoms to be tiny spheres that make up structures
  • Thomson Model

    Thomson discover electrons within an atom. He believed the negatively charged electrons were floating in a positively charged sphere. His model has also been called the plum pudding model.
  • Rutherford Model

    Rutherford Model
    Rutherford discovers that atoms have a small, dense positively charged nucleus in the center. He determines the electrons are moving around this nucleus.
  • Bohr Model

    Bohr Model
    Bohr finds that the elctrons orbit the nucleus in circular paths that are fixed distances from the center.
  • Electron Cloud Model

    Electron Cloud Model
    Schrodinger develops mathematical equations to describe the motion of electrons in atoms. These equations lead to the Electron Cloud Model
  • Quantum Mechanical Model

    Quantum Mechanical Model
    The current model of the atom is based upon scientists solving Schrodinger's mathematicl equations. This model says that the electrons have energy and a location where they are likely to be.