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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.
The radioactive decay law states that “The probability per unit time that a nucleus will decay is a constant, independent of time”. It is represented by λ (lambda) and is called decay constant. The mathematical representation of the law of radioactive decay is:
Sep 12, 2022 · 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.
May 3, 2024 · Radioactive Decay. Radioactive decay is a fundamental process in nuclear physics in which unstable atomic nuclei spontaneously transform into more stable ones by emitting radiation as particles or energy.
Jun 21, 2024 · radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic nuclei.
Sep 25, 2023 · Radioactive decay is a physical phenomenon that involves the spontaneous transformation of unstable atomic nuclei into more stable ones. This nuclear process plays a crucial role in nuclear physics and has significant implications in fields such as medicine and geological dating.
Oct 27, 2022 · The naturally occurring radioactive isotopes of the heaviest elements fall into chains of successive disintegrations, or decays, and all the species in one chain constitute a radioactive family, or radioactive decay series. Three of these series include most of the naturally radioactive elements of the periodic table.
