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October 30, 2014

Homework Help: science

Posted by chuck on Monday, March 5, 2012 at 3:49pm.

The half-life of carbon 14 is 5730 years. if a 1 g sample of old carbon is 1/8 as radioactive as 1 g of a current sample, then the age of the old sample is about ___________years.

22,900

17,200

11,500

716

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