katelynhessleroxouez katelynhessleroxouez 18-05-2020 Chemistry contestada (25 points) A certain isotope of technetium has a half-life of 8 hours. How much of a 40 gram sample will be left after 16 hours? A. 10 grams B. 40 grams C. 5 grams D. 20 grams
