Question

How was electron dicovered (detailed answer required)

Answer 1

J.J. Thomson used a Crookes, or cathode ray, tube to conduct experiments that led to the discovery of the electron in 1897. He provided evidence that cathode rays have a negative charge. He also investigated positively charged neon gas particles.

Step-by-step explanation:

Answer 2

J.J. Thomson.

Step-by-step explanation:

The credit for the discovery of the electron and its properties goes to J.J. Thomson based on his experiments carried out in a discharge tube. He suggested that electrons are necessary constituents of all atoms. J.J. Thomson carried out experiments by taking a gas at low pressure of 0.01mm Hg in a discharge tube.