Thomson's Atomic Model

Thomson's Atomic Model

J.J. Thomson's Plum Pudding Model, proposed in 1897, was an early atomic model that described the structure of the atom after he discovered the electron. In this model, Thomson suggested that atoms consist of a positively charged "pudding" with negatively charged electrons embedded throughout, simila...

Before 1897, atoms were thought to be indivisible. However, this belief changed when J.J. Thomson discovered the electron, the first subatomic particle.

Thomson’s discovery began with an experiment on cathode rays, which are the streams of particles seen in a cathode ray tube.

This glass tube, with metal electrodes at each end and n...