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A radiometric dating technique uses the decay of

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Radiometric Age Dating

Radiometric dating | Paleontology Wiki | Fandom

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, while the other two are governed by the usual electromagnetic and strong forces.

Radiometric dating

Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide ; it is moderately hard, malleable , and has a high melting point. All known thorium isotopes are unstable. The most stable isotope, Th, has a half-life of On Earth, thorium and uranium are the only significantly radioactive elements that still occur naturally in large quantities as primordial elements.
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