Models of the Atom

By sshohet
  • The Dalton Model

    The Dalton Model
    John Daltin, a British chemist, came to the conclusion that every single element is made of similar atoms. Dalton also thought that separate elements have different-massed atoms.
    John thought the atoms to be miniscule and compact.
  • The Thomson Model

    The Thomson Model
    J.J. Thompson, a British scientist, discovered the electron. He eventually suggested a new model, implying that an atom is a positively charged ball pierced with electrons. Thompson's model could be thought of as a cookie with protruding chocolate chips coming out of it on all sides.
  • The Nagaoka Model

    The Nagaoka Model
    Hantaro Nagaoka, a Japanese physicist, had the idea for a model of the atom to be a large orb in the heart with a charge that was positive. Nagaoka’s idea displayed the electrons orbiting around the globule as the planets go around the sun.
  • The Rutherford Model

    The Rutherford Model
    Ernest Rutherford, a British physicist, came to the conclusion that an atom consists of mostly empty capacity. Electrons go around a tiny nucleus that is positively charged.
  • The Bohr Model

    The Bohr Model
    The Danish physicist Niels Bohr suggested a model of the atom that had electrons rotating in distinct layers, opposed to randomly orbiting around the nucleus. Bohr said that atoms or send off energy as the electrons move layer to layer.
  • Period: to

    The Present Modern Model

    The present atomic model is the result of discoveries from the 1920s to now. Electrons create a negatively charged cloud surrounding the nucleus. It’s unfeasible to find out where an electron is located at any set time.
  • The Chadwick Model

    The Chadwick Model
    James Chadwick, a British physicist, stumbled upon the neutron. The neutron’s purpose tells why atoms were denser than the complete mass of their electrons and protons.