In particle physics, the weak interaction (the weak force or weak nuclear force) is the mechanism of interaction between sub-atomic particles that causes radioactive decay and thus plays an essential role in nuclear fission.
The weak interaction (the weak force or weak nuclear force) is the mechanism of interaction between sub-atomic particles. This is in particle physics. This mechanism of interaction between sub-atomic particles causes radioactive decay. This mechanism of interaction between sub-atomic particles thus plays an essential role in nuclear fission.