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Nuclei — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsNuclei1 Mark
MCQ
The mass number of a nucleus is equal to:
  • A
    The number of neutrons in the nucleus.
  • B
    The number of protons in the nucleus.
  • C
    The number of nucleons in the nucleus.
  • D
    None of them.
✓

Answer

  1. The number of nucleons in the nucleus.

Explanation:

Mass number of a nucleus is defined as the sum of the number of neutron and protons present in the nucleus, i.e. the number of nucleons in the nucleus.

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