This half life is a relatively small number, which means that carbon 14 dating is not 35% of its carbon 14 still, then we can substitute values into our equation.

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Archaeologists use the exponential, radioactive decay of carbon 14 to estimate the death dates of organic material. The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.

## Carbon 14 Dating Calculator

Carbon is naturally in all living organisms and is replenished in the tissues by eating other organisms or by breathing air that contains carbon. At any particular time all living organisms have approximately the same ratio of carbon 12 to carbon 14 in their tissues. When an organism dies it ceases to replenish carbon in its tissues and the decay of carbon 14 to nitrogen 14 changes the ratio of carbon 12 to carbon Experts can compare the ratio of carbon 12 to carbon 14 in dead material to the ratio when the organism was alive to estimate the date of its death.

Radiocarbon dating can be used on samples of bone, cloth, wood and plant fibers. The half-life of a radioactive isotope describes the amount of time that it takes half of the isotope in a sample to decay. In the case of radiocarbon dating, the half-life of carbon 14 is 5, years.

## 5.7: Calculating Half-Life

Plutonium is used to make nuclear explosives. Plutonium has a half-life of 24, years, which means that it would take , years to decay to a safe amount. Plutonium decays exponentially into lead, but it causes concerns for humans because the tiny particles of plutonium react with oxygen and water and can be extremely flammable.

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Since the half-life of Plutonium is so high even in comparison to the carbon 14 half-life of 5, years humans must be very cautious of the way they dispose of plutonium. Scientists are looking for safe ways for disposing plutonium. We can see exponential decay in other areas as well. I am just learning the recipe so it takes me more time to look back and forth and double check.

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The more cookies I make, the more practice I have and the less time it takes me to bake the cookies. We can use exponential decay to represent a number of different things. Most importantly, exponential decay is not linear and the decrease is rapid at first, but not constant.

## Radiocarbon dating

It is often used to describe population decreases or increases, which depicts exponential growth and can be seen using a graph of an exponential curve. Natasha Glydon Exponential decay is a particular form of a very rapid decrease in some quantity.

If P o is the initial amount of pollutants in the kerosene, then the amount left, P , after n feet of pipe can be represented by the following equation: Carbon 14 Dating Archaeologists use the exponential, radioactive decay of carbon 14 to estimate the death dates of organic material. 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.

At any particular time all living organisms have approximately the same ratio of carbon 12 to carbon 14 in their tissues. When an organism dies it ceases to replenish carbon in its tissues and the decay of carbon 14 to nitrogen 14 changes the ratio of carbon 12 to carbon Experts can compare the ratio of carbon 12 to carbon 14 in dead material to the ratio when the organism was alive to estimate the date of its death.