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The number of alpha beta -particles emit...

The number of `alpha beta -`particles emitted in the nucleus reaction `._(92)U^(238) rarr ._(90)Th^(234) rarr ._(91)Pa^(234)` are respectively

A

1 and 1

B

1 and 2

C

2 and 1

D

2 and 2

Text Solution

Verified by Experts

The correct Answer is:
A
`""_(92)U^(238)to ""_(92)Th^(234) to ""_(91)Pa^(234)`
No. of `alpha` particle `=(238 - 234)/(4) = 4/4 = 1 `
No. of `beta` particle = 91-90=1
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