Question
The iodine-131 nuclide has a half-life of 8.0 days. If you originally have a 257 g sample, after 48 days how much will you have?
Answers
plumpycat
1 half life is 8 days.
48 days / 8 days per half life = 6 half lives that occur, so we halve our original amount 6 times.
Amount remaining = 257 g * (1/2)^6
48 days / 8 days per half life = 6 half lives that occur, so we halve our original amount 6 times.
Amount remaining = 257 g * (1/2)^6