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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, beta, and gamma decay.
Radioactive Decay Law. When an individual nucleus transforms into another with the emission of radiation, the nucleus is said to decay. Radioactive decay occurs for all nuclei with \(Z > 82\), and also for some unstable isotopes with \(Z < 83\). The decay rate is proportional to the number of original (undecayed) nuclei N in a substance.
9 de may. de 2024 · Radioactivity is the property of some nuclei to emit energy and particles spontaneously. Learn about the types of radioactivity (alpha, beta, gamma, etc.), their applications, and their rates of decay.
22 de abr. de 2024 · Learn what radioactive decay is, how it occurs in unstable atoms called radionuclides, and how it produces ionizing radiation. See examples of decay chains for uranium and thorium.
Learn what radioactive decay is, how it occurs, and what types of radiation and decay modes exist. Explore the natural and artificial sources of radioactivity, the decay law, and the radioactive decay chain.
Nuclei that have unstable n:p ratios undergo spontaneous radioactive decay. The most common types of radioactivity are α decay, β decay, γ emission, positron emission, and electron capture. Nuclear reactions also often involve γ rays, and some nuclei decay by electron capture.
Radioactive decay is the process in which an unstable nucleus spontaneously loses energy by emitting ionizing particles and radiation. This decay, or loss of energy, results in an atom of one type, called the parent nuclide, transforming to an atom of a different type, named the daughter nuclide.
