The decay of the daughter nuclei

Fission is a process where a nucleus splits into two smaller daughter nuclei. These daughter nuclei are usually unstable. To become stable, they undergo radioactive decay. Figure 1 shows the decay path of two daughter nuclei after fission.

Figure 1: Here we can see the two daughter nuclei of fission, 144 barium and 89 krypton, decay many times before reaching a stable product.