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A '''nuclear reaction''' is when the [[Atomic Nucleus|nuclei]] of [[atom]]s either [[Nuclear Fusion|fuse]] together to form a bigger [[Atomic Nucleus|nucleus]] or [[Nuclear Fission|fission]] into two smaller [[Atomic Nucleus|nuclei]]. ===About Nuclear Reactions===: '''Nuclear reactions''' release [[energy]] stored in the [[Nuclear Potential Energy Store|nuclear potential energy store]].: In a '''nuclear reaction''' [[mass]] becomes [[energy]].: The two types of '''nuclear reaction''' are::*[[Nuclear Fusion]]:*[[Nuclear Fission]]