Final answer:
Thomson's model of the atom proposed that atoms are composed of a positively charged mass with negatively charged electrons embedded throughout. The positive and negative charges are evenly distributed, giving the atom a neutral overall charge. Thomson's model was later replaced by Rutherford's nuclear model.
Step-by-step explanation:
Thomson's model of the atom, also known as the plum pudding model, proposed that atoms were composed of a positively charged mass with negatively charged electrons embedded throughout it. According to this model, the positive and negative charges were evenly distributed, giving the atom a neutral overall charge. Thomson's model was later replaced by Rutherford's nuclear model, which suggested that the positive charge was concentrated in a small, dense nucleus at the center of the atom.
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