J.J.+Thomson

Welcome to the J.J. Thomson Hall created by Aaron, Caleb John.


**Born:** 18-Dec - 1856 **Birthplace:** Cheetham Hill, England **Gender:** Male **Race or Ethnicity:** White
 * Died:** 30-Aug - 1940
 * Religion:** Anglican/Episcopalian
 * Occupation** – Physicist

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In 1897 there where a couple of thing going on in the United States. William McKinley was the US President and the US Population 76 Million. The United States annexes the Hawaiian Islands. The Boston Subway is opened, becoming the first underground metro in the United States. J.J. Thomson did his research in England, London and at the time he was a profesor at Cambridge and Royal Institution. =====

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Cathode ray tube(an electronic device where a beam of particles are sent between a positive and a negative terminal within a vacuum tube, creating a peculiar light). []

He founded and named the electron. He discovered that electrons hold a unit of negatively charged electricity, and that cathode ray are a collected by electrons. @http://www.infoplease.com/ipa/A0905226.html

He would bend the ray using a magnetic field then measure the direction that the ray would bend. Then he would be able to determine how much mass was involved and what its charge was. The experiment helped JJ Thompson figure out that the rays were actually made out of small particles. These particles had a mass much smaller then an atom. ( This was determined by the amount of bending in the given magnetic field) [] []

The problems with J.J. Thomson theory is that he had the electrons in the atoms just floating around when electrons actually have a place to be in. Also in his model J.J. Thomson did not have a nucleus in the atoms.