Mass defect per nucleon is ___________________?
Correct answer: B. Packing fraction
- A. The binding energy of the nucleus
- B. Packing fraction
- C. The average energy of the nucleus
- D. All of above are one and the same thing
Explanation
Mass defect per nucleon is commonly expressed through the packing fraction, which represents the mass defect relative to the mass number. The likely mistake is choosing binding energy of the nucleus, because binding energy is the energy equivalent of the total mass defect, not the mass defect per nucleon itself.
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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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