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The probability concept aligns with the traditional definition of half-life.Provided the number of nuclei is reasonably large, half of the original nuclei should decay during one half-life period.Therefore, the decay of a nucleus is like random coin flipping.The chance of heads is 50 percent, no matter what has happened before.

The half-life of a radioactive isotope describes the amount of time that it takes half of the isotope in a sample to decay.

Then, half of that amount in turn decays in the following half-life.

Therefore, the number of radioactive nuclei decreases from A more precise definition of half-life is that each nucleus has a 50 percent chance of surviving for a time equal to one half-life.

This relic was first displayed in Turin in 1354 and was denounced as a fraud at that time by a French bishop.

Its remarkable negative imprint of an apparently crucified body resembles the then-accepted image of Jesus.

Carbon-14 dating can be used for biological tissues as old as 50 or 60 thousand years, but is most accurate for younger samples, since the abundance of nuclei in them is greater.