J Jenna New member May 4, 2010 #1 ...percent of its original activity? How long will it take for a sample of radioactive iron-59 to decay to 3.80 percent of its original activity? The half-life of iron-59 is 45.10 days, so give your answer in days.
...percent of its original activity? How long will it take for a sample of radioactive iron-59 to decay to 3.80 percent of its original activity? The half-life of iron-59 is 45.10 days, so give your answer in days.
