CBSE Class 9 Answered

Nuclear fission is the splitting of the nucleus of an atom into parts (lighter nuclei) often producing free neutrons and other smaller nuclei, which may eventually produce photons (in the form of gamma rays). Nuclear fission is the splitting of the nucleus of an atom into parts (lighter nuclei) often producing free neutrons and other smaller nuclei, which may eventually produce photons (in the form of gamma rays).

Fission itself is a nuclear process which does not usually occur naturally in nature as it requires a large mass and an incident neutron to start the reaction.

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