Atom

  • Dalton: Solid Sphere Model

    The Solid Sphere model is an atomic model proposed by John Dalton in 1803 stating that all objects are made of particles called atoms
  • Thompson: The Plum Pudding Model

    In Thomson's model, the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges
  • Rutherford: The Nuclear Model

    Rutherford's model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths
  • Bohr: The Bohr (Planetary) Model

    The Bohr Model is a planetary model in which the negatively-charged electrons orbit a small, positively-charged nucleus similar to the planets orbiting the Sun
  • Schrodinger: Quantum Mechanics Model

    Schrödinger used mathematical equations to describe the likelihood of finding an electron in a certain position
  • Today

    Schrodinger and Heisenberg Model. There is a key point about the Bohr model that is no longer accepted in current models of the atom