This video deals about the J.J Thomson's plum pudding model of an atom which he proposed in 1900 when he discovered electrons through cathode ray tube and goldstein discovered proton in the same discharge tube . The question was how are these particles arranged in an atom .Thomson concluded that atom consist of positively charged sphere with electrons set within the sphere . The atom as awhole is neutarl as the number of electronss and the protons are the same .
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