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mikael mikael
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Posts: 12017
10 years ago
An archaeologist finds the 14C in a sample of 3.70 g of material to be decaying at 107 counts per second. A modern 100-g sample of the same material decays at 151 counts per second. The half-life of 14C is 5730 years. How old is the sample? 
A) 13,700 years 
B) 9470 years 
C) 29,900 years 
D) 15,000 years 
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10 years ago
AA
Mastering in Nutritional Biology
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mikael Author
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10 years ago
Thanks again.
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