The first simple model of an atom was proposed by J.J Thomson. According to Thomson, an atom is a positively charged uniform sphere of radius 10(minus 8) cm in which electrons are embedded in such a way that negative charge equals to positive charge. This model was also called plum-pudding model and water melon model.
This model was unable to explain the stability of an atom.
This model was unable to explain the stability of an atom.
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