what is radioactivity ?

Asked by Avani pandey | 1st Jan, 2013, 04:04: PM

Expert Answer:

Radioactive decay occurs in unstable atomic nuclei – that is, ones that don’t have enough binding energy to hold the nucleus together due to an excess of either protons or neutrons. Radioactivity is the process whereby unstable atomic nuclei release energetic subatomic particles. The word radioactivity is also used to refer to the subatomic particles themselves. 

Answered by  | 1st Jan, 2013, 06:23: PM

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