The process of radioactive dating

Posted by / 16-Nov-2017 15:52

The process of radioactive dating

The term is also used more generally to characterize any type of exponential or non-exponential decay.For example, the medical sciences refer to the biological half-life of drugs and other chemicals in the human body. The original term, half-life period, dating to Ernest Rutherford's discovery of the principle in 1907, was shortened to half-life in the early 1950s.This is an example where the half-life reduces as time goes on.(In other non-exponential decays, it can increase instead.) The decay of a mixture of two or more materials which each decay exponentially, but with different half-lives, is not exponential.There are various simple exercises that demonstrate probabilistic decay, for example involving flipping coins or running a statistical computer program.

In that case, it does not work to use the definition that states "half-life is the time required for exactly half of the entities to decay".After another 5,730 years, one-quarter of the original will remain.On the other hand, the time it will take a puddle to half-evaporate depends on how deep the puddle is.) is the time required for a quantity to reduce to half its initial value.The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo, or how long stable atoms survive, radioactive decay.

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As an example, the radioactive decay of carbon-14 is exponential with a half-life of 5,730 years.

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