The Millikan Oil Drop Experiment Quiz
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Questions and Answers

What did Robert Andrews Millikan deduce from his oil drop experiment?

  • The charge on every oil drop was a fraction of the electron's charge
  • The charge on every oil drop was constant regardless of the conditions
  • The charge on every oil drop was inversely proportional to the electric field
  • The charge on every oil drop was an integral multiple of $1.6 imes 10^{-19}$ Coulomb (correct)

    • According to Ernest Rutherford, where is the majority of an atom's mass located?

  • In the extra-nuclear region
  • Equally distributed throughout the atom
  • In the electrons
  • In the nucleus (correct)

    • When did scientists first believe that the majority of an atom's mass was located in the central nuclear core?

  • By 1911
  • By 1932
  • By 1920 (correct)
  • By 1909

    • Who informed the world about the existence of the neutron?

    <p>James Chadwick</p> Signup and view all the answers

    What did Millikan's oil drop experiment demonstrate about the charge of electrons?

    <p>The charge of electrons is quantized</p> Signup and view all the answers

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