EVERYDAY SCIENCE

Detailed explanation-1: -Summary. J.J. Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged “soup."

Detailed explanation-2: -In 1897, J. J. Thomson discovered the first subatomic particle, the electron, while researching cathode rays. To explain the neutrality of atoms, Thomson proposed a model of the atom in which negative electrons are scattered throughout a sphere of positive charge. He called his atom the plum pudding model.

Detailed explanation-3: -On his return from America, he achieved the most brilliant work of his life – an original study of cathode rays culminating in the discovery of the electron, which was announced during the course of his evening lecture to the Royal Institution on Friday, April 30, 1897.

Detailed explanation-4: -J.J. Thomson discovered the electron in 1897. An electron is a constituent of all the matter we are surrounded by.

Detailed explanation-5: -JJ Johnson theorized that atoms were huge solid positive spheres, filled with negative electrons.