Define nuclear fission and nuclear fusion11/19/2023 The power that fuels the sun and the stars is nuclear. Overall, the process of fusion releases more energy than fission but currently only fission is used in commercial nuclear power plants. Nuclear fission occurs when large, unstable nuclei split into two smaller nuclei (fission products). Nuclear energy can also be released by fusion of two light elements (elements with low atomic numbers). Energy is released during this process as a result of the. Here the heavier nucleus has a greater binding energy than the two parent nuclei combined. Nuclear fission involves the splitting of a nucleus with a high mass number into two lighter nuclei. On the other hand, nuclear fusion involves the combining of two lighter nuclei to form a heavier nucleus. Energy is released during this process as a result of the fact that the sum of the binding energies of the two lighter nuclei is greater than the parent nuclei's binding energy. Nuclear fission involves the splitting of a nucleus with a high mass number into two lighter nuclei. Each element has a set number of neutrons, protons, and electrons that define it. (Show a graph of binding energy vs mass number) Radioactive isotopes are essential for the fusion and fission reactions that power nuclear weapons. In nuclear reactions, if a nucleus is converted into a new system of nuclei with higher binding energy, the excess binding energy is released in the form of energetic particles and radiation. In basic terms, this is the energy required to separate an atomic nucleus into is constituent nucleons, i.e. Nuclear fission is a process in which a heavy atomic nucleus divides into two massive fragments. Both the processes of nuclear fusion and fission are dictated by the concept of a 'binding energy'.
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