Multiple Choice
An archaeologist finds the 14C in a sample of of material to be decaying at 107 counts per second.A modern 1.00-g sample of the same material decays at 151 counts per second.The half-life of 14C is 5730 y.How old is the sample?
A) 12,200 y
B) 8460 y
C) 25,100 y
D) 12,600 y
Correct Answer:
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