Home
Class 12
PHYSICS
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 .
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • NUCLEI

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|8 Videos

  • MOVING CHARGES AND MAGNETISM

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • PRACTICE PAPPER

    NCERT FINGERTIPS|Exercise Practice Paper 3|50 Videos

Similar Questions

Explore conceptually related problems

When a nucleus undergoes radioactive decay, its new mass number is

Tritium undergoes radioactive decay giving -

When an atom undergoes beta^(bar) decay

When the nucleus o fan eletrically neutral atom undergoes a radioactive decay process , it will remain after he decay if the process is

When nucleus of an electrically neutral atom undergoes a radioactive decay process, it will remain neutral after the decay if the process is (a) An alpha - decay (b) A bete^(o+) -decay (c ) A gamma -decay (d) A K - caputure process

When a nucleus with atomic number Z and mass number A undergoes a radioactive decay process, (i) Both Z and A will decrease, if the process is alpha decay (ii) Z will decrease but A will not change, if the process is beta^(+)- decay (iii) Z will increase but A will not change, if the process is beta- decay (iv) Z and a will remain uncharged, if the prices is gamma decay