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9. The half-life of Polonium is 140 days, but your sample will not be useful to you after 30% of the original material h
Posted: Thu May 12, 2022 7:15 am
by answerhappygod
- 9 The Half Life Of Polonium Is 140 Days But Your Sample Will Not Be Useful To You After 30 Of The Original Material H 1 (32.71 KiB) Viewed 29 times
9. The half-life of Polonium is 140 days, but your sample will not be useful to you after 30% of the original material has decayed. (A) How long can you use your sample after receiving it (assume it was pure upon receipt)? (B) If you started with a 200 mg sample, how many milligrams will you have left after 10 days?