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When a nucleus in an atom undergoes a ra...

When a nucleus in an atom undergoes a radioactive decay the electronic energy levels of the atom

A

do not change for any type of radioactivity

B

change for `alpha` and `beta` radioactivity but not for `gamma`-radioactivity

C

change for `alpha`-radioactivity but not for others

D

change for `beta`-radioactivity but not for others

Text Solution

Verified by Experts

The correct Answer is:
b
As an alpha particle carries 2 units of positive charge, and a beta particle carries one unit of negative charge and `gamma` particle carries no charge , therefore electronic energy levels of the atom change for `alpha` and `beta` radioactivity , but not for `gamma`- radioactivity .
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