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12 magg 1904 anni - -J.J Thomson was responsible for the discovery of the electron in 1897 using a cathode ray tube, and proposed the ‘Plum Pudding’ atomic model in 1904. The Plum Pudding atomic model consisted of electrons within a positive atom.
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15 ott 2017
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Data:
12 magg 1904 anni
Adesso
~ 120 years ago
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