Homework Help: science

Posted by ticie burke on Monday, July 2, 2012 at 12:11pm.

Carbon-14 has a half-life of approximately 5,730 years. How many half-lives have occurred in a sample that contains 50 percent of the original amount of the parent isotope?

science - Steve, Monday, July 2, 2012 at 12:20pm
exactly one.

The half-life is the time it takes to reduce to one-half (50%) of the original value.
physics - palwasha, Wednesday, July 4, 2012 at 4:59am
please answer my question

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