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Why do chemists consider different isot...

Why do chemists consider different isotopes to be the same element even through their nuclei are not the same?

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PHYSICS GALAXY - ASHISH ARORA-NUCLEAR PHYSICS AND RADIOACTIVITY-Concptual MCQs
  1. Why do chemists consider different isotopes to be the same element ev...

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  2. A radioactive element .90 X^238 decay into .83 Y^222. The number of be...

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  3. Three speciments A,B,C of same radiactive element have activites, 1 cu...

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  4. Which of the following radiation has the least wavelength ?

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  5. A nucleus with Z = 92 emits the following in a sequence a, beta^(bar...

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  6. When aluminium is bombarded with fast neutrons, it changes into-sodium...

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  7. The mean density of the nuclei is proportinal to:

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  8. In the following nuclear reaction .(13)Al^(27)+.(2)He^(4)rarr.(15)P^...

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  9. Choose the WRONG statement. A thermonuclear fusion reactor is better t...

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  10. The chemical behaviour of a atom depends upon:

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  11. The critical mass of a fissionable uranium -235 can be reduced by

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  12. Cadmium and Broron rods are used in a nuclear reactor to

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  13. A beta- particle is emitted by a radioactive nucleus at the time of co...

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  14. Why does the fussion occur at high temeprature?

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  15. Mass defect of an atom refers to

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  16. If M is the mass of a nucleus and A its atomic mass, then the packing ...

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  17. The fusion of hydrogen into helium is more likely to take place:

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  18. The number of neutrons that are released on an average during the fiss...

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  19. A beam of fast moving alpha particles were directed towards a thin fil...

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  20. From the following equations pick out the possible nuclear fusion reac...

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  21. Radio carbon dating is done by estimating in the speciment:

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