Rutherford's model did not completely reimagine Thomson's. Like Thomson, Rutherford still believed that atoms contained negatively charged electrons. Unlike the plum pudding model, where those atoms simply floated in "soup," Rutherford believed they orbited the central nucleus just as planets orbit the sun.
The lInk is below for anymore help on this question :
https://education.seattlepi.com/differences-between-plum-pudding-model-planetary-mod...