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Question
Radioactive isotope A has a half-life of one year, while radioactive isotope B has a half-life of one day. If equal numbers of atoms of each are present, which will give the highest reading on a Geiger counter?1) A
2) B
3) both the same
How much of the original sample of radioactive isotope A will be left at the end of the second year?
4) none
5) one-quarter
6) one-half
7) one-eighth
Answer
This answer is hidden. It contains 3 characters.
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