Plum Pudding Model

The plum pudding model was suggested as the first atomic model by J.J Thomson where he suggested that the atom was a sea of positive charge that surrounded small negative electrons

Articles that Plum Pudding Model Appeared in...

The History of the Atomic Model: Thomson and the Plum Pudding

J.J Thomson contributed massively to the model of the atom and the modern day theory. His work involved the use of cathode ray tubes and identifying a particle lighter than the atom itself, the electron.

The History of the Atomic Model: Rutherford and Bohr

The work of J.J Thomson’s student, Ernest Rutherford, led to the discovery of the Proton. Working with alpha particles fired at a piece of gold foil it was observed that instead of passing straight through it was scattered. Suggesting there was something large in the centre of the atom.