<unk>  () is a radioactive isotope of<unk>  produced by nuclear fission, with a half-life of 28.8 years. It undergoes β− decay into yttrium-90, with a decay energy of 0.546 MeV.<unk>  has applications in medicine and industry and is an isotope of concern in fallout from nuclear weapons, nuclear weapons testing, and nuclear accidents.
Strontium-90
Technetium 
Radium-223
Iodine 
Iodine
Rubidium-82 chloride
Technetium-99m
Dotinurad