How much of radioactive kind of iodine will be left after 180 days if you start with 960 grams and half-life is 60 days

Question

asked Oct 23, 2019 72.5k views

1 Answer

Stuart Brown · Answer 1 · 2019-10-30T04:42:12+0000

The formula for half-life is
$A=A_02^{ (-t)/(T_(1/2))$ .
A_0 = 960

,

,

.

. This answer is reasonable because it smaller than the starting value, and it accounts for having it three times basically.

120 grams