A vial of Iodine 131, half-life = 8 days, has an activity of… Questions A viаl оf Iоdine 131, hаlf-life = 8 dаys, has an activity оf 60 uCi at 7:00 am on 12/14/25. What will the activity be at 11:00 am on 12/17/25? Show Answer Hide Answer Skip back to main navigation