Originally Posted by
skeske1234 Alcheny is the ancient study of turning substances into gold using chemical or sometimes magical means. When platinum 197 undergoes a nuclear process known as beta decay, it becomes gold 197, which is a stable isotope. The half life of platinum 197 is 20 h.
a) how long would it take to turn 90 percent of a 1 kg sample of platinum 197 into gold?
b) do you think this is a viable "get rich quick" scheme? why or why not?
my work:
for part a) I used the equation
0.10=(1/2)^t/20
and then solved for t
but I cant get the right answer in the back of the book
for part b) if i used the answer in the back, which is 66.4 h, then would b) be yes it is a viable trick because it only takes 2.5 days to get the gold? correct me if i am wrong and state why please