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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
`beta`-particle carries one unit of negative charge, and `alpha`-particle carries 2 unit of positive charge and `gamma`-particle carries no charge, therefore electronic energy levels of the atom charges for `alpha and beta`-decay but not for `gamma`-decay.
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DC PANDEY ENGLISH-NUCLEI-CHAPTER EXERCISES
  1. Which of the following is not used for the treatment of cancer

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  2. Identify the correct statement given below.

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  3. When a nucleus in an atom undergoes a radioactive decay the electronic...

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  4. Heavy stable nuclei have more neutrons than protons. This is because o...

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  5. In one average-life,

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  6. Which of the following is a wrong description of binding energy of a n...

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  7. As compared to ^12C atom, ^14C atoms has

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  8. When the number of nucleons in a nuclues increases the binding energy ...

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  9. The binding energy per nucleon is maximum in the case of.

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  10. Which of the following process will result into fission reaction ?

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  11. What fissionable material was used in the bomb dropped at Nagasaki (Ja...

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  12. The principle of controlled chain reaction is used in.

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  13. In an atom bomb, the energy is released because of the.

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  14. Boron rods are used in nuclear reactors because

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  15. A nuclear reaction along with the masses of the particle taking part i...

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  16. The curve of blinding energy per nucleon as a function of atomic mass ...

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  17. In the given nuclear reaction A, B, C, D, E represents .92 U^238 rarr^...

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  18. An atom of mass number 15 and atomic number 7 captures an alpha-partic...

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  19. The binding energies of the nuclei A and B are E(alpha)and E(alpha) re...

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  20. The total number of alphaandbeta particles emitted in the nuclear reac...

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