Radiation dating definition Icam live girls

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So if you know the radioactive isotope found in a substance and the isotope's half-life, you can calculate the age of the substance. Well, a simple explanation is that it is the time required for a quantity to fall to half of its starting value.

So you might say that the 'full-life' of a radioactive isotope ends when it has given off all of its radiation and reaches a point of being non-radioactive.

However, rocks and other objects in nature do not give off such obvious clues about how long they have been around.So we rely on radiometric dating to calculate their ages.

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