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July 4, 2015

Homework Help: math

Posted by becky on Wednesday, October 9, 2013 at 10:10pm.

the half life of the carbon isotope C14 is about 5700 years.
A. about how many years does it take 1000 grams of this substance to decay to 500 grams?
B. about what percent of the original amount would you expect to find after 1000 years?

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