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Questions and Answers
What did Robert Andrews Millikan deduce from his oil drop experiment?
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?
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?
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?
Who informed the world about the existence of the neutron?
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What did Millikan's oil drop experiment demonstrate about the charge of electrons?
What did Millikan's oil drop experiment demonstrate about the charge of electrons?
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