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Radioactivity is due to a) Stable elec...

Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) Stable nucleus d) Unstable nucleus

A

stable electronic configuration

B

unstable electronic configuration

C

stable nucleus

D

unstable nucleus

Text Solution

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The correct Answer is:
d
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OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -OBJ - A
  1. Natural radioactivity was discovered by a)Schmidt b)Curie c)Becquer...

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  2. Radioactivity is due to a) Stable electronic configuration b) Unstab...

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  3. Radioactivity is essentially:

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  4. Radioactivity is generally not found in a)Light nuclei b)Stable nuclei...

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  5. The activity of radioisotope changes with:

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  6. The rays are given off by a radioactive element from A)Nucleus B)Vale...

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  7. The alpha particles are A)High- energy electrons B)Positively charged...

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  8. The emission of beta particle is from A)The valence shell of an atom B...

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  9. Identify the nuclear reaction that differs from the rest:

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  10. Gamma rays are:

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  11. Radium is a radioactive substance. It dissolves in dilute H(2)SO(4) an...

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  12. The velocity of alpha-rays is approximately:

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  13. alpha-rays have ionization power because they possess a. Lesser kine...

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  14. The radiation from naturally occuring radioactive substance as seen af...

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  15. Which of the following statements about radioactivity is are true? a)I...

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  16. The radioactivity of uranium mineras is usually more in comparison to ...

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  17. The correct order of ionising capcity of alpha, beta and gamma-rays is

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  18. which of the following radiations have least effect on both the photog...

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  19. In alpha- decay , n//p ratio : a)May inrease or decrease b) Remains co...

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  20. In beta- decay n//p ratio : a)May inrease or decrease b) Remains const...

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