Answers

2014-12-05T17:00:03+05:30
Radioactivity is the energy and mass release by spontaneous changes in the nucleus of an atom.
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  • Brainly User
2014-12-08T13:41:28+05:30
Radioactivity is a spontaneous process which does not depend upon external factors like temperature, pressure etc i.e radioactive element is in a state of disintegration which depends upon law of chance.
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