An Anthropologist claims that a specimen he uncovered is
30,000 years old. It contains 8% of C-14. Is his claim valid? Why?

Respuesta :

Answer:

There is 1/8 of the parent C-14 left. 1/8 means that 3 half-lives have elapsed. Multiply the half-life of C14 by 3: 5,730 years x 3 = 11,460 years old.  The sample is only 11,460 years old, to the claim is not valid.