Question

J.J. Thomson’s cathode-ray tube experiment
demonstrated that
(a) the e/m ratio of the cathode-ray particles
changes when a different gas is placed in
the discharge tube
(b) cathode rays are streams of negatively
charged ions
(c) all the mass of an atom is essentially in the
nucleus
(d) the e/m of electrons is much greater than
the e/m of protons

Answer 1

Answer:

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Explanation:

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