Asked by anonymous
How many times greater is the half-life of 24Na (15 hours) to that of 216Po (0.15 seconds)
Half-time of 24 Na (15hrs) would be 54000 seconds while 216Po would be 0.15s. Because it says how many times *greater*, I opt to divide 54000 seconds by 0.15 seconds which would equal 360000. The answer is 4.4*10^10 (44000000000). I can't seem to get this.. could some please tell me what I did wrong? Thanks.
Half-time of 24 Na (15hrs) would be 54000 seconds while 216Po would be 0.15s. Because it says how many times *greater*, I opt to divide 54000 seconds by 0.15 seconds which would equal 360000. The answer is 4.4*10^10 (44000000000). I can't seem to get this.. could some please tell me what I did wrong? Thanks.
Answers
Answered by
Steve
15hr* 3600s/hr = 54000s
54000/0.15 = 360,000
you are correct. Something's messed up here.
54000/0.15 = 360,000
you are correct. Something's messed up here.
Answered by
anonymous
Alright, thank you Steve. If it really is the case that the answers were wrong, I will hate myself so much for spending more than half an hour trying to figure what's wrong, more so, posting the question on the Internet...
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