The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
Correct answer: B. 1837
- A. 159
- B. 1837
- C. 2537
- D. 10000
Explanation
A proton and neutron have nearly equal masses, so the proton-to-electron mass ratio is also about 1837 to 1839. The value 159 is far too small for a nucleon and electron comparison.
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