In designing models of nuclear changes, the models of nuclei in nuclear fission becomes smaller while that in nuclear fusion becomes larger after the reaction.
Nuclear fission is a type of nuclear reaction in which The nucleus of larger atoms splits into two or more smaller nuclei of atoms of elements.
Nuclear fusion is a type of nuclear reaction in which The nucleus of two smaller atoms fuse to produce nuclei of a larger atom.
Therefore, in the models of nuclear reactions, the models in nuclear fission becomes smaller while that in nuclear fusion becomes larger.
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