A nucleus .n^ m X emits one alpha-partic...

A nucleus `._n^ m X` emits one `alpha-`particle and two `beta-`particles. The resulting nucleus is

A

`""_(n-2)^(m-4)Y`

B

`""_(n-4)^(m-6)Z`

C

`""_(n)^(m-6)Z`

D

`""_n^(m-4)X`

Text Solution

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The correct Answer is:

D

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