In 1897, J.J. Thomson made a groundbreaking scientific discovery by identifying the electron, which significantly advanced the understanding of atomic structure. He proposed that atoms are not indivisible as previously thought but consist of smaller components.
Plum Pudding Model
Thomson said he discovered the electron. This meant that atoms have some sort of structure
He found that the negatively charged electrons were scattered throughout a cloud of positive charge
He compared this to the plums in plum pudding.
Began the overall scientific look at the atom and its components