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If mass of neutron were halved and mass ...

If mass of neutron were halved and mass of electron becomes double atomic mass of `""_(8)^(16)O` would be

A

16

B

8

C

12

D

32

Text Solution

Verified by Experts

The correct Answer is:
C
Atomic mass `=8+(1)/(2)xx8=12`
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CENGAGE CHEMISTRY-RADIOACTIVITY-MANDATORY EXERCISE (SET III)
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  2. Give the names of four artificially transmuted radioactive elements.

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  3. The most stable isotope is one having

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  4. The number of radioactive atoms disintegrating per unit time is called

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  5. The time taken by a radioactive substance with a long half-life period...

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  6. ""(92)^(234)U undergoes beta decay. What would be the products of thi...

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  7. Which of the following are not true about beta decay?

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  9. The rate of radioactive decay is increased by

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  10. The emission of a gamma ray from a nucleus results in

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  11. Half-life period of a metal is 20 days. What fraction of metal does re...

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  12. The protons in a nucleus stay together due to the

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  13. Half life of a radioactive substance with progress of time

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  14. Isotope A has a half life measured in minutes where as isotope B has a...

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  15. If 12 g of sample is taken and 6 g of a sample decay in 1 hr. The amou...

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  16. Two isotopes P and Q, radioactive in nature atomic weight of P and Q a...

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  17. If mass of neutron were halved and mass of electron becomes double ato...

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  18. Two element P and have half lives of 10 and 15 minute respectively. Fr...

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  19. The number of neutrons in the element L in the following nuclear chang...

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