ion123Read writing from iON123 on Medium. Blog sudah berusia 175thn link: Every day, iON123 and thousands of other voices read, write,Iodine-123 (123 I) is a radioactive isotope of iodine used in nuclear medicine imaging, including single-photon emission computed tomography (SPECT) or SPECTCT exams. The isotope's half-life is 13.2232 hours; [1] the decay by