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10 October, 06:12

J. J Thomson's experiments provided evidence that an atom

A. is the smallest particle of matter

B. has a positive charge

C. contains negatively charged particles

D. has a negative charge

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Answers (1)
  1. 10 October, 07:58
    0
    C. contains negatively charged particles

    Explanation:

    J. J Thomson placed two opposite charged electric plates around a cathode ray tube which is a sealed glass tube with high vacuum He found that a beam of negatively charged particles are generated in the tube which got attracted to the positively charged plate. These subatomic particles are called electrons and they have negative charge.
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