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The number of beta- particle emitted dur...

The number of `beta-` particle emitted during the change `._(a)X^(c ) rarr _(d)Y^(b)` is

A

`(a-b)/(4)`

B

`d+((a-b)/(2))+c`

C

`d+((c-b)/(2))-a`

D

`d+((a-b)/(2))-c`

Text Solution

Verified by Experts

The correct Answer is:
C
`_(a)^(c)X rarr `_(d)^(b)Y+m_(2)^(4)He+n `_(-1)^(0)e```
`:. C=b+4m` …(i)
and `a=d+2m-n` …(ii)
by (i) & (ii)
`n=d+((c-b)/2)-a`. Ans. (C)
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