Radioactivity | Definition, Types, Applications, & Facts
https://www.britannica.com/science/radioactivity
WEBMar 29, 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. An unstable nucleus will decompose spontaneously, or decay, into a more stable configuration but will do so only in a few specific ways by emitting certain particles ...
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