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which of the following statement(s) is/are correct? i) stars like the sun generate energy through nuclear fusion. ii) the most stable nucleus in terms of binding energy per nucleon is 56fe. iii) the core of nuclear fission reactors consists of uranium enriched in 235u surrounded by a moderator which slows down the neutrons from the 235u.

Sagot :

The correct option is (ii) the most stable nucleus in terms of binding energy per nucleon is 56fe.

  • Excluding lighter nuclei, the average binding energy per nucleon is about 8 MeV.
  • The maximum binding energy per nucleon occurs around the mass number A = 50 and corresponds to the most stable nuclei. The Fe56 iron nucleus is located near the peak with a value of binding energy per nucleon of approximately 8.8 MeV. It is one of the most stable nuclides in existence.
  • Nuclei with very low or very high mass numbers have less binding energy per nucleon and are less stable because the lower the binding energy per nucleon, the easier it is to split the nucleus into its individual nucleons.
  • Nuclei with low mass numbers can undergo nuclear fusion, where light nuclei fuse together under certain conditions so that the final product can have a higher binding energy per nucleon.
  • Nuclei with high mass numbers can undergo nuclear fission, where the nucleus splits into two daughter nuclei with the release of neutrons.
  • The daughter nuclei will have a greater binding energy per nucleon.

To study more about nuclear fusion -

https://brainly.com/question/12701636

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