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A radioactive nucleus undergoes a series...

A radioactive nucleus undergoes a series of decay according to the scheme
` A to A_1 to A_3 to A_4`
If the mass number and atomic number of `A` are `180` and `72`, respectively, what are these number `A_(4)` ?.

A

`172 ,69 `

B

` 108 , 252`

C

` 108 , 72`

D

None

Text Solution

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The correct Answer is:
A
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MOTION-RADIOACTIVITY & NUCLEAR PHYSICS-Exercise -1
  1. The number of alpha and beta- emitted during the radioactive decay cha...

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  2. When .90 Th^228 transforms to .83 Bi^212, then the number of the emitt...

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  3. A radioactive nucleus undergoes a series of decay according to the sch...

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  4. The particles not emitted by radioactive susbstace are:

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  5. gamma- rays are produced ………. , alpha or beta- decay

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  6. The particle emitted in the nuclear reaction .(Z) X^(A) = .(Z+1)...

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  7. By neutrino hypothesis which conservation law for beta- decay c...

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  8. During a negative beta decay,

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  9. In a given magnetic field for the particle less of same velocit...

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  10. A nucleus with mass number m and atomic number n, emits one al...

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  11. The intensity of gamma- from a source (I(0)) reduces to I(0)//8 af...

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  12. The inteisity of gamma radiation from a given source is I(0) . ...

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  13. The graph between remaining radioactive atoms and time for a r...

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  14. The following is not and application of radioactive material -

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  15. In which of the following we don't use a radioactive isotope :

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  16. The reason of origin of gamma- rays is

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  17. A radioactive material of half-life T was kept in a nuclear reactor at...

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  18. Let u denote one atomic unit .one atom of an element of mass number A ...

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  19. The surface area of a nucleus varies with mass number A as

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  20. In the nuclear reaction .92 U^238 rarr .z Th^A + .2He^4, the values of...

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