What did Sir William Crookes discover about the atom?

Sir William Crookes’ played an important role in the atomic structure. Born in London, England on June 17, 1832, Crookes’ is responsible for reconstructing the Cathode Ray, discovered the element thallium and show there is a negative charge in atoms. William Crookes’ died on April 14, 1919 in London.Click to see full answer. Accordingly, what did Sir William Crookes discover?Sir William Crookes, (born June 17, 1832, London, Eng. —died April 4, 1919, London), British chemist and physicist noted for his discovery of the element thallium and for his cathode-ray studies, fundamental in the development of atomic physics.Subsequently, question is, what did JJ Thomson discover about the atom? In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas. Additionally, when did Sir William Crookes discovered the electron? A Crookes tube (also Crookes–Hittorf tube) is an early experimental electrical discharge tube, with partial vacuum, invented by English physicist William Crookes and others around 1869-1875, in which cathode rays, streams of electrons, were discovered.What is the name of model of William Crookes?sneca janagan. thallium was discovered by Sir William Crookes in 1861. thallium is a chemical element of atomic (#81). Thallium is a soft silvery-white metal, its compounds are very poisonous.