If the ¹⁴C to ¹²C ratio present in a fossil is 25% of that in living organism, how many years have passed since this fossilized organism died? A) 1,432 B) 2,865 C) 5,730 D) 11,460 E) 17,190

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The half-life of ¹⁴C is 5,730 years. Since the ¹⁴C to ¹²C ratio in the fossil is 25% of that in living organisms, it has been 5,730 years since the organism died.

If the 14C to 12C Ratio Present in a Fossil

If the ¹⁴C to ¹²C Ratio Present in a Fossil