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86A^222rarr84B^210. In this reaction, ho...

`_86A^222rarr_84B^210`. In this reaction, how many `alpha` and `beta` particles are emitted?

A

`3 alpha and 2 beta`

B

`5alpha and 3 beta`

C

`3alpha and beta`

D

`5alpha and 5 beta`

Text Solution

Verified by Experts

The correct Answer is:
C
By mean of emission of an `alpha` particle the atomic number is decreased by 2 units while mass number is decreased by 4 units but in case of emission of one `beta` particel the atiomic number is increased by 1 units while mass number is not affected.
`_(92)X^(232)overset(-3alpha and)(rarr_(89))Y^(220)`
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