Final answer:
The plum pudding model of the atomic structure is a concept in Chemistry that was proposed by J.J. Thomson in 1904. It suggested that the atom is a positive sphere with negatively charged electrons scattered throughout it, similar to plums in a pudding. This model was later replaced by Ernest Rutherford's nuclear model of the atom.
Step-by-step explanation:
The subject of this question is Chemistry and it pertains to the atomic structure and the development of the plum pudding model. The plum pudding model was proposed by J.J. Thomson in 1904 and it suggested that the atom was a positive sphere with negatively charged electrons scattered throughout it like plums in a pudding. This model was later replaced by Ernest Rutherford's nuclear model of the atom.