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OpenStudy (anonymous):
Carbon-14 has a half-life of approximately 5,730 years. How many half-lives have occurred in a sample that contains less than 10 percent of the original amount of the parent isotope? Answer:4 Right?
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OpenStudy (anonymous):
please give the whole information
OpenStudy (anonymous):
4 is right
OpenStudy (anonymous):
@mrdoldum Is it?
OpenStudy (anonymous):
Yes, or if you want to be absolutely accurate, 3.3 half lives
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