What are the properties of carbon-14?

1) Carbon-14 is a naturally occurring carbon isotope.

2) Carbon-14 has a known half-life.

3) Carbon-14 is present in all living organisms.

Living things have carbon-14 in their organism, but when they died, the amount of C-14 they contain begins to decrease as the C-14 undergoes radioactive decay. Measuring the amount of C-14 in a sample from a dead plant or animal when the animal or plant died.

The half-life of C-14 is about 5730 years.

Half-life is the time required for a quantity (in this example number of radioactive nuclei of carbon-14) to reduce to half its initial value.

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