Question: 2. Which scientist used the cathode ray tube to isolate the electron in 1897 and his model was then called the Plum Pudding model (negative

2. Which scientist used the cathode ray tube to isolate the electron in 1897 and his model was then called the Plum Pudding model (negative electrons in a " sea" of positive pudding)? A. JJ Thomson B. Niels Bohr C. Robert Millikan D. Emest Rutherford

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