maddienziegler3726 maddienziegler3726 30-01-2024 Physics contestada Thallium-201, a radioactive isotope used to image the heart, has a half-life of 3.05 days. How long would it take for a sample of thallium-201 to decay to 18% of its original activity? a) 6.1 days b) 9.3 days c) 12.2 days d) 15.0 days
