What theory did the plum pudding model support?

The plum pudding model, proposed by J.J. Thomson in 1897, supported the theory of a composite structure of the atom, suggesting that it consisted of a positively charged "pudding" with negatively charged electrons (the "plums") embedded within it. This model aimed to explain the neutrality of atoms and the existence of electrons, which Thomson had discovered. However, it was later superseded by the Rutherford model, which introduced a nucleus at the center of the atom.