5.70 × 103 dating of carbon-14 yr artifacts cardiovascular sodium-24 14.951 h system tracer biochemical 14.26 days tracer 1.248 × 109 dating of yr rocks 44.495 red blood cell iron-59 days lifetime tracer radiation cobalt-60 5.2712 yr therapy for cancer biomedical 6.006 h imaging 8.0207 thyroid iodine-131 days studies tracer radiation 1.600 × 103 radium-226 therapy for yr cancer dating of 4.468 × 109 rocks and yr Earth’s crust smoke 432.2 yr detectors *The m denotes metastable, where an excited state nucleus decays to the ground state of the same isotope.
carbon-14 5.70 × 103 yr dating of artifacts sodium-24 14.951 h cardiovascular system tracer 14.26 days biochemical tracer 1.248 × 109 yr dating of rocks iron-59 44.495 days red blood cell lifetime tracer cobalt-60 5.2712 yr radiation therapy for cancer 6.006 h biomedical imaging iodine-131 8.0207 days thyroid studies tracer radium-226 1.600 × 103 yr radiation therapy for cancer 4.468 × 109 yr dating of rocks and Earth’s crust 432.2 yr smoke detectors *The m denotes metastable, where an excited state nucleus decays to the ground state of the same isotope.
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