The statement that accurately describes a fission reaction is that more energy is required to split the nucleus of an atom than the energy actually released during a fission reaction. That is option A.
Fission reaction is defined as the disintegration of a heavy unstable nucleus into two or more smaller nuclei with the release of energy.
The energy required to split the unstable nucleus is greater than the one released because heavy elements are involved.
Therefore, the statement that accurately describes a fission reaction is that more energy is required to split the nucleus of an atom than the energy actually released during a fission reaction.
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