Question

Define radio activity​

Answer 1

radioactivity. The emission of elementary particles by some atoms when their unstable nuclei disintegrate ( see half-life). Materials composed of such atoms are radioactive. ( See alpha radiation, beta radiation, and gamma radiation.)

Answer 2

Heya mate,

Here's your answer

=>Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, or a gamma ray or electron in the case of internal conversion.

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