Which one is a stable element on the basis of binding energy?
Correct answer: D. Fe
- A. Sn
- B. Ba
- C. Kr
- D. Fe
Explanation
Binding energy is the energy required to bind the nucleons inside the nucleus. Binding energy is the measure of stability. According to the binding energy per nucleon vs mass number graph, Fe-56 has the maximum value of binding energy per nucleon (8.75 MeV).
This question appeared on the UHS MDCAT 2008 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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