Social Studies, 13.11.2020 01:00 jacksonyodell4184
Until the final years of the nineteenth century, the accepted model of the atom resembled that of a billiard ball – a small, solid sphere. In 1897, J. J. Thomson dramatically changed the modern view of the atom with his discovery of the electron. Thomson’s work suggested that the atom was not an “indivisible” particle as John Dalton had suggested but a jigsaw puzzle made of smaller pieces. Thomson’s theory came from his experiments with cathode rays produced by the Cathode Ray Tube. From his experiment, he observed that cathode rays are deflected by magnetic and electric fields in a manner that is identical to negatively charged material. Due to these observations, J. J. Thomson concluded that cathode rays are negatively charged particles that are located in all atoms. When evidence from many new experiments does not support an existing scientific theory like Dalton’s, which of the following is most likely to happen?
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Until the final years of the nineteenth century, the accepted model of the atom resembled that of a...
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