jj thompson, what did he do that contributed to the atomic theory?

Question

what did jj thompson do that contributed to the atomic theory

Answer 1

It was G.Johnstone Stony who posited ,in 1894, that the particle that he coined as electron was a Unit of Charge.
However it was Sir Joseph John Thomson ,thru experiment discovered in 1897, that the Electron was a subatomic micromass particle.
In 1906 he proved that the Hydrogen atom contained only one single electron. It was on that basis that Niels Bohr ,in 1913, associated Planks constant to atomic energy radiation.
It was the basis of the begining of atomic structure description. However; it was not until 1932 that the Neutron was dicoverded By James Chadwick.

It was Dmitri Mendeleev that accuratly formulated the Periodic Table of Elements in 1868 ,before knowledge of the composition of atomic structure theory was even discovered.

Answer 2

Sir J Joseph Thomson

Answer 3

He is most well known for his discovery of the electron.

Answer 4

He did a fiar bit. Google it youself and do your own work.