Carbon dating practice problems

The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.

Carbon is naturally in all living organisms and is replenished in the tissues by eating other organisms or by breathing air that contains carbon.

If possible, the ink should be tested, since a recent forgery would use recently-made ink.

of Carbon $ to Carbon $ in the artifact or remains to be dated.

This half life is a relatively small number, which means that carbon 14 dating is not particularly helpful for very recent deaths and deaths more than 50,000 years ago.

After 5,730 years, the amount of carbon 14 left in the body is half of the original amount.

Have you ever wondered how the scientists knew the age of the bone?

If the fossil has 35% of its carbon 14 still, then we can substitute values into our equation.

So, the fossil is 8,680 years old, meaning the living organism died 8,680 years ago.

(Since this is a decay problem, I expect the constant to be negative.

If I end up with a positive value, I'll know that I should go back and check my work.) In Its radiation is extremely low-energy, so the chance of mutation is very low.

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