thomson

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  • I was born on Dec. 18,1856
  • I went to school to Trinity College at Cambrige to study math.
  • In 1894 I worked at the Cavendish Laboratory and became the professor of physics.
  • The tools I used while in the lab were devised better equipment that passed rays through the vacuum. It measured the angles at which they were deflected and it calculated the ratio of the electrical charge to the mass of the particles.
  • My model was the plum pudding model, it represented an attempt to consolidate the known properties of atoms at the time. I concluded that electrons were negatively charged and atoms are neutral.
  • My experiment on the cathode ray could be deflected by a magnetic field, the negative charge was not separate phenomenon. This led to my discovery of electrons.
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