The half-life of carbon14 is 5,730 years. If a fossil is determined to have a carbon-14 amount corresponding to 4 half-lives, what is the approximate age of the fossil?
22,000 years
35,000 years
17,000 years
29,000 years

ANSWERS

2016-09-24 19:13:52

If one half-life is 5,730 years, so four half-lifes is: 5,730 × 4 = 22,920 The approximate age of the fossil is 22,000 years

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