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The activity fo a radio nuclide (.^(1...

The activity fo a radio nuclide (`.^(100)X`) is `6.023` cuire. If the disnegration constant is `3.7xx10^(-4) sec^(-1)` , the mass of radio nuclide is:

A

`10^(-14)g`

B

`10^(-6)g`

C

`10^(-15)g`

D

`10^(-3)g`

Text Solution

Verified by Experts

The correct Answer is:
`(c)`
Rate `= lambda N = lambda ("Av. No" xx a)/(100)` (Let mass of `.^(100)X` be `ag`)
`:. 6.023xx3.7xx10^(10)`
`= (3.7xx10^(4)xx6.023xx10^(23)xx a)/(100)`
`:. A = 110^(-15)g`
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P BAHADUR-RADIO ACTIVITY-Exercies 3A
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  3. The activity fo a radio nuclide (.^(100)X) is 6.023 cuire. If the d...

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  9. Which of the following statements is wrong?

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  10. Which of the following statements is wrong?

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  11. If E(e) is the energy needed to remove an electron from atom and E(n) ...

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  12. Nuclear reacations either exoeerge or endoregic shows the exchange of:

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  13. The reaction, .(13)^(27)Al + .(2)^(4) He rarr .(14)^(30)S + .(1)^(1)H:

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  14. .(6)^(11) C on decay produces:

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  15. One important source of energy of volacans erruption is:

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  16. The decay of mass during nuclear fusion and nuclear fission are respec...

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  17. If equal number of atom of two radioactive elements are consisdered, t...

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  18. As an alpha- paricle approaches a .(7)N^(14) nuclesus, the potential e...

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