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The n//p ratio for a stable lighter nucl...

The `n//p` ratio for a stable lighter nuclei is about `………………` .

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For a stable nuclei the

The n/p ratio for ._(1)H^(1) is :

When n//p ratio of an isotope is greater than the stable isotope of that element, it emits

Unstable nuclei attain stability through disintegration. The nuclear stability is related to neutron proton ratio (n//p) . For stable nuclei n//p ratio lies close to unity for elements with low atmoic numbers (20 or less) but it is more than 1 for nuclei having higher atomic numbers. Nuclei having n//p ratio either very high or low undergo nuclear transformation. When n//p ratio is higher than required for stability, the nuclei have the tendency to emit beta -rays. while when n//p ratio is lower than required for stability, the nuclei either emits alpha -particles or a positron or capture K -electron.

Unstable nuclei attain stability through disintegration. The nuclear stability is related to neutron proton ratio (n//p) . For stable nuclei n//p ratio lies close to unity for elements with low atmoic numbers (20 or less) but it is more than 1 for nuclei having higher atomic numbers. Nuclei having n//p ratio either very high or low undergo nuclear transformation. When n//p ratio is higher than required for stability, the nuclei have the tendency to emit beta -rays. while when n//p ratio is lower than required for stability, the nuclei either emits alpha -particles or a positron or capture K -electron.

CENGAGE CHEMISTRY-NUCLEAR CHEMISTRY-Exercise Fill In The Blanks
  1. The n//p ratio for a stable lighter nuclei is about ……………… .

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  2. In beta- emission, n//p ratio. …………………… .

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  3. The half-life of a radioactive isotope is always. ………………………….

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  4. The decay constant related to half- life period is …………..

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  5. The rate of disintegration of a radioactive substance is …………………………… ...

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  6. Radioactive substance of 1 curie is the amount that can produce ………………...

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  7. The last member of 4n+1 series is an isotope of …………………………………. .

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  8. The conversion of one element into another by aritificial means is ter...

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  9. In nuclear reactions, total number of …………… and ………………. are conserved.

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  10. In exoergic reaction, the total mass of products is ……………………….. than t...

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  11. The disappearance of one atomic mass unit (am u) releases ………………………. ...

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  12. The most effective projectile in the transmutation of heavy element is...

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  13. The hydrogen bomb uses the principle of ……………………….

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  14. The atomic bomb uses the principle of ……………… .

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  15. ………………………….. brings fission in U^(235).

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  16. .(7)N^(14)+ .(0)n^(1)rarr ...................+.(1)H^(1)

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  17. Atoms of the same element possessing identical mass but differing in h...

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  18. Nuclear fusion takes place at very high temperature and hence it is ca...

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  19. The splitting of a heavy nuclei with neutron into two smaller nuclei a...

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  20. The age of archaeological findings can be determined by ……………….. meth...

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