If there was one electron it would be in the middle, two electrons would be on opposite sides and lager numbers would be located within rings. He won the Nobel Prize for his work on the conduction of electricity through gases. Thomson, OM, FRS (Decem August 30, 1940) was a British physicist and Nobel laureate, credited with the discovery of the electron, the isotope, and the invention of the mass spectrometer. His research laid the foundation for developments of great importance in electricity, electronics, chemistry, and other sciences. Thomson is the father of Nobel laureate George Paget Thomson. He proposed that repulsion between the electrons would impose some ordered structure. Thomson was the discoverer of the electron. Therefore he derived this to an analogy of a ‘‘plum pudding’’. Thomson on realised that the positively charged material in the atom and the negatively charged electrons would be attracted to each other, that the electron would combine to the positive material. His experiment findings drove Thomson to find out how the parts of an atom was arranged. It was Thomson that made the breakthrough however, concluding through his experimentation that particles making up the rays were 1,000 times lighter than the lightest atom, proving that something smaller than atoms existed. This meant that Dalton’s model of an atom was incorrect, since the atom was not the smallest possible particle. This was something that many scientists were investigating at the time. A heavier part, responsible for the majority of mass of the atom and a negatively charged ‘corpuscle’ (electron). He also deducted that there were two parts of atom held together by electrostatic attraction. From this he discovered that no matter what metal the electrodes were made up of or what type of gas was in the tube, the mass to charge ratio was unchanged.
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