Question

Describe how J.J. Thomson's cathode-ray tube experiments led to his Plum Pudding model of the atom.

Answer 1

the cathode ray experiment showed that there were both positive and negative charges in the atom. This led him to theorize that the charges MUST be spread out evenly throughout the atom. Thus the plum-pudding model

Answer 2

In J.J. Thompson’s cathode ray tube experiment electricity was discharged in a cathode ray tube with electricity flowing from the cathode to the anode. The particles that ejected from the cathode were deflected by a positive charged plate, which led Thompson to propose that the cathode rays are negatively charged particles. In the plum pudding analogy Thompson believed that the electron is made up of sea of electrons that are embedded in a pudding of positively charged particles.