Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of… Writers24x7 3 months ago Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of 131I
