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When ""(90)Th^(228) gets converted into...

When `""_(90)Th^(228)` gets converted into `""_(83)Bi^(212)` , then the number of `alpha- and beta-` particles emitted will respectively be

A

`8alpha, 7beta`

B

`4alpha, 7beta`

C

`4alpha, 4beta`

D

`4alpha, 1beta`

Text Solution

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The correct Answer is:
D
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