Thank you for the opportunity to help you with your question!
depending on the nuclear reaction.some cases due to nuclear energy level transitions nuclear energy is produced in the form of gamma rays.in some case when the binding energy of daughter nucleus is greater then nuclear energy is released due to splitting of atomic nuclei.some cases nuclear energy is produced due to fusion.if the certain elements are fissionable the the statement is true.(only if the reaction is spontanious)
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Jun 29th, 2015
do u have any further question please let me know?