Competency #5

Answer and Explanation

The correct answer is D.

Which of the following best describes the relative masses of a neutron and an electron?

  1. A neutron has much less mass than an electron.
  2. A neutron and an electron have about the same mass.
  3. A neutron is approximately 10 times more massive than an electron.
  4. A neutron is over 1500 times more massive than an electron.
  5. All of the above, because neutrons vary in mass.

Neutrons are WAY bigger than electrons. In fact, a neutron is approximately 1800 times more massive than an electron.

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