Which of the following provided experimental evidence of the existence of the electron?
The beam in the cathode ray tube turned blue.
The alpha particle was deflected to the side.
The alpha ...
... particle was deflected straight back.
The beam of the cathode ray tube was deflected to the side.
... inserted into the tube. These rays were named cathode ... the hypothetical particle: the electron. ... Moseley provided additional experimental evidence in ... [www.answers.com/topic/atom]
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