Nuclear energy is released during: FISSION, RADIOACTIVE DECAY AND SPLITTING OF ATOMS.
Nuclear energy refers to the energy that is released during the process of nuclear reaction. Nuclear reaction can come in form of nuclear fission or nuclear fusion. Nuclear fission occurs when an atomic nuclei is split into two or more components with the release of energy. Nuclear fusion occur when two or more atomic nuclei combine together to form a bigger nuclei accompany with the release of energy. Radioactive compounds are the ones that usually undergo nuclear reactions.
