Binding energy of nucleus is the energy that must be supplied to:
Correct answer: D. Separate the nucleus into its constituent nucleons
- A. Remove nucleons
- B. Remove an alpha-particle
- C. Remove a B-particle
- D. Separate the nucleus into its constituent nucleons
Explanation
When nuclear reactions occur, there is always a mass defect (products have lower mass than reactants). This loss in mass is converted to binding energy, equivalently, it can also be defined as the energy required to break a nucleus into its constituent protons and neutrons. The other options are incorrect as binding energy is not the energy needed to remove nucleons, alpha, or beta particles.
This question appeared on the ETEA MDCAT 2015 paper, which you can sit online with every answer explained.
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About Composition of Atomic Nuclei
Atomic nuclei contain positively charged protons and electrically neutral neutrons, collectively called nucleons. Questions use atomic number, mass number and nuclear notation to identify isotopes, isobars and isotones, and may connect nuclear composition with nuclear charge, mass defect, binding energy and the stability of the nucleus.
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