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CBSE - XII Science - Physics - Nuclei

why an alpha particle but not a proton is emitted by radioactive nuclei?

Asked by haider.samina 7th March 2015, 10:39 AM
Answered by Expert


A proton is also emitted in a radioactive decay. However, this happens only for nuclei which are proton rich and it is also followed by a beta decay.
So, a proton emitting from a nucleus is highly improbable.
An alpha particle is the favoured decay particle as it lends stability to the nuclei.
Answered by Expert 9th March 2015, 7:51 PM

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