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In the given reaction .z X^A rarr .(z+...

In the given reaction
`._z X^A rarr ._(z+1)Y^A rarr ._(z-1) K^(A - 4) rarr ._(z-1) K^(A - 4)`
Radioactive radiations are emitted in the sequence.

A

`alpha, beta, gamma`

B

`beta, alpha, gamma`

C

`gamma, alpha, beta`

D

`beta, gamma, alpha`

Text Solution

Verified by Experts

The correct Answer is:
B
`""_(z)X^(A) overset(beta^(-) "decay")rarr ""_(z+ 1) Y^(A) overset(alpha- "decay")rarr ""_(z-1)K^(A-4) overset(gamma- "decay")rarr ""_(z-1)K^(A- 4) +` energy
As `beta^(-)` -decay, `""_(z)X^(A) rarr ""_(z+1)Y^(A) + e^(-) + bar(gamma)`
For `alpha`-decay, `""_(z+ 1)Y^(A) rarr ""_((z+1)-2)K^(A-4) + ""_(2)He^(4)`
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