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CBSE Class 12-science Answered

<div><strong><span style="color: #003366;">why an alpha particle but not a proton is emitted by radioactive nuclei?</span></strong></div>
Asked by haider.samina | 07 Mar, 2015, 10:39: AM
Expert Answer
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 Romal Bhansali | 09 Mar, 2015, 07:51: PM
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