Radioactive isotope used for age dating

those that form during chemical reactions without breaking down).The unstable or more commonly known radioactive isotopes break down by radioactive decay into other isotopes.

Knowing about half-lives is important because it enables you to determine when a sample of radioactive material is safe to handle.This decay process leads to a more balanced nucleus and when the number of protons and neutrons balance, the atom becomes stable.This radioactivity can be used for dating, since a radioactive 'parent' element decays into a stable 'daughter' element at a constant rate.It might take a millisecond, or it might take a century. But if you have a large enough sample, a pattern begins to emerge.It takes a certain amount of time for half the atoms in a sample to decay.Scientists look at half-life decay rates of radioactive isotopes to estimate when a particular atom might decay.

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