Such a slow process tends to favor isotopes with atomic mass numbers (A = protons + neutrons) around 90, 138 and 208, which have unusually stable atomic nuclei with 50, 82, and 126 neutrons, respectively.
Takav polagan proces favorizira izotope s atomskim relativnom atomskom masom (A = protoni + neutroni) od oko 90, 138 i 208, koji imaju neobično stabilne atomske jezge s 50, 82 i 126 neutrona.