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The rays are given off by a radioactive ...

The rays are given off by a radioactive element from A)Nucleus B)Valence electrons C)All the orbits D)Outer orbit

A

nucleus

B

valence electrons

C

all the orbits

D

outer orbit

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a
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OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -OBJ - A
  1. Radioactivity is generally not found in a)Light nuclei b)Stable nuclei...

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  2. The activity of radioisotope changes with:

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

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

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

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

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  7. Gamma rays are:

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

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  9. The velocity of alpha-rays is approximately:

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

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

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

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

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

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

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

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  18. A device used for the measurement of radioactivity is

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  19. Which of the following does not contain material particles?

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