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define radio activity?

define radio activity?

Grade:11

2 Answers

DURGA PRASAD
253 Points
6 years ago
Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability. Because the nucleus experiences the intense conflict between the two strongest forces in nature, it should not be surprising that there are many nuclear isotopes which are unstable and emit some kind of radiation
BOLLU SRINIVAS
420 Points
6 years ago
the spontaneous disintegration of substance with the simultaneous emission of invissible rays is called Radio activity

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