The Development of the Modern Model of the Atom

The video explores the development of the atomic model, starting with Democritus' ancient theory of indivisible atoms. It progresses to J.J. Thomson's discovery of the electron using cathode rays, leading to the plum pudding model. Rutherford's gold foil experiment reveals the nuclear model with a dense nucleus. Bohr refines this by introducing electron shells with specific energy levels. Finally, Chadwick discovers the neutron, explaining discrepancies in atomic mass.

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