radioactive decay

Definitions of radioactive decay
1

n the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

Synonyms:
decay, disintegration
Types:
alpha decay
radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle
beta decay
radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle
Type of:
nuclear reaction
(physics) a process that alters the energy or structure or composition of atomic nuclei

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