Radioactive dating example

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Radioactive decay also known as nuclear decay , radioactivity , radioactive disintegration or nuclear disintegration is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles or photons. The weak force is the mechanism that is responsible for beta decay. Radioactive decay is a stochastic i. According to quantum theory , it is impossible to predict when a particular atom will decay, regardless of how long the atom has existed.
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5.7: Calculating Half-Life

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What Half Life Means for Evolution

Dating techniques are procedures used by scientists to determine the age of rocks, fossils, or artifacts. Relative dating methods tell only if one sample is older or younger than another; absolute dating methods provide an approximate date in years. The latter have generally been available only since Many absolute dating techniques take advantage of radioactive decay , whereby a radioactive form of an element decays into a non-radioactive product at a regular rate. Others, such as amino acid racimization and cation-ratio dating, are based on chemical changes in the organic or inorganic composition of a sample. In recent years, a few of these methods have come under close scrutiny as scientists strive to develop the most accurate dating techniques possible.
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Radiocarbon dating

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