What scientist was responsible for he raisin-in-a-bun model?

The "raisin-in-a-bun" model, which describes the structure of an atom, was proposed by the British scientist J.J. Thomson in 1904. This model suggested that atoms consist of a positively charged "bun" with negatively charged electrons (the "raisins") embedded within it. Thomson's model was an early attempt to explain atomic structure before the development of the more accurate planetary model by Ernest Rutherford.