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Radioacity of naptunium stops, when it i...

Radioacity of naptunium stops, when it is converted to:

A

`Th`

B

`Rn`

C

`Pb`

D

`Bi`

Text Solution

Verified by Experts

The correct Answer is:
`(d)`
End product fo neptunium `(4n + 1)` series is `Bi`
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P BAHADUR-RADIO ACTIVITY-Exercies 3A
  1. .(92)^(235)U belongs to IIIB group of the periodic table, It loses one...

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  2. A small subatojmic particle was passed through large watger tank conat...

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  3. Radioacity of naptunium stops, when it is converted to:

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  4. Least branching is found in which of the following radioactive series...

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  5. Conservation of energy into mass occurs in:

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  6. The isotope used to find the age of series:

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  7. In the carbon cycle form which hot starts obain their energy, the .(6...

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  8. The t(1//2) for .^(14)C in (i) .^(14)CO(2), (ii) .^(14)C(6)H(12)O(6), ...

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  9. The radioactivity of a sample is R(1) at a time T(1) and R(2) at a ti...

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  10. Which nuclear raction is not correct?

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  11. The parent nucleus of (4n + 3) seires is:

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  12. If 5g pf a radioactive substanc ehas t(1//2) = 12hr, 20g of the same s...

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  13. A radioactive istope having a half-line of 3 day was received after 12...

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  14. Radioactive material is deacign with t(1//2) = 30 days on being, separ...

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  15. A radioactive substance has a constant actity of 2000 disintegraion/mi...

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  16. The energy released during the fussion of 1 kg uranium is a)9 xx 10^(2...

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  17. Consider the following process of decay, .(92)^(234)U rarr .(90)^(23...

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  18. The nucleus and an atom can be assumed to be spherical. The relation ...

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  19. A freshly prepared radioactive source to half-life 2 hr, emits radiati...

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  20. Two radio-isotopes P and Q of atomic weight 10 and 20 respetively are ...

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