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a. The change of one element to another by the emission of charged
particles from the nuclei of its atoms. AGI
b. The spontaneous disintegration of the atoms of certain nuclides into
new nuclides, which may be stable or undergo further decay until a stable
nuclide is finally created. Radioactive decay involves the emission of
alpha particles, beta particles, and other energetic particles, and
usually is accompanied by emission of gamma rays and by atomic
de-excitation phenomena. It always results in the generation of heat.
Syn: radioactive disintegration
Source:
Dictionary of Mining, Mineral, and Related Terms
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