1.

In the radioactive decay `._(92)X^(232) rarr ._(89)Y^(220)`, how many `alpha and beta-`particles are ejected from X to form YA. `3 alpha and 3 beta`B. `5 alpha and 3 beta`C. `3 alpha and 5 beta`D. `5alpha and 5 beta`

Answer» Correct Answer - A
`._(92)X^(232) rarr ._(89)Y^(220) + x_(2) he^(4) + y ._(-1)e^(0)`
No. of `alpha -`particles `= (232 - 220)/(4) = 3`
No. of `beta-`particles `= 2 xx - 92 + 89 = 3`


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