Question
What is the approximate age in years of an organic material with 12.5% carbon-14 remaining?A. 1,430B. 5,730C. 17,190D. 28,650
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This means that after 5730 years, half of the carbon-14 in an organic material will have decayed. Show more…
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The half-life of carbon-14 is approximately 5730 years, while the half-life of carbon-12 is essentially infinite. If the ratio of carbon-14 to carbon-12 in a certain sample is 25\% less than the normal ratio in nature, how old is the sample? (A) Less than 5730 years (B) Approximately 5730 years (C) Significantly greater than 5730 years, but less than 11,460 years (D) Approximately 11,460 years
If the carbon-14 radioactivity of an ancient wooden artifact is $6.25 \%$ that of a reference sample, what is the estimated age of the artifact? $\left(t_{1 / 2}=5730\right.$ years $)$
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