Half of the carbon-14 in a rock decays to nitrogen-14 after about 5,700 years.How long would it take before there is seven times as much carbon-14 as nitrogen-14 (i.e.the composition of the sample is 7/8 carbon-14)?

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The Answer of Half of the carbon-14 in a rock decays to nitrogen-14 after about 5,700 years.How long would it take before there is seven times as much carbon-14 as nitrogen-14 (i.e.the composition of the sample is 7/8 carbon-14)?

Half of the Carbon-14 in a Rock Decays to Nitrogen-14