Strontium-89
![Metastron, a preparation of strontium-89 chloride made by GE Healthcare and used for purposes such as prostate cancer treatment.[2]](/Images/godic/202501/27/Metastron_(Strontium-89),_GE_Healthcare4837.jpg")
Strontium-89 (89Sr) is a radioactive isotope of strontium produced by nuclear fission, with a half-life of 50.57 days. It undergoes β decay into yttrium-89. Strontium-89 has an application in medicine.
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