Atomic Theory and Cathode Rays

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Questions and Answers

Who proposed the name electron to describe the particles in electricity?

  • J. J. Thomson
  • George Stoney (correct)
  • John Dalton
  • William Crookes

Who showed that electrons are negatively charged and measured the 'e/m' of the electron?

  • J. J. Thomson (correct)
  • John Dalton
  • William Crookes
  • Robert Millikan

Who measured the charge on the electron using his Oil Drop experiment?

  • George Stoney
  • J. J. Thomson
  • William Crookes
  • Robert Millikan (correct)

Who proposed a simple 'plum pudding' model of the atom?

<p>J. J. Thomson (A)</p>
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Who discovered the nucleus of the atom and the existence of protons in the nucleus?

<p>Rutherford (A)</p>
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Who discovered the neutron?

<p>James Chadwick (A)</p>
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