During the transformation of `._(c )^(a)X` of `._(d)^(b)Y` the number of `beta`-particle emitted are:

Answer

`alpha=(a-b)/(4) ; beta = d+((a-b))/(2)-c`

Explanation

`._(c)^(a)M rarr ._(d)^(b)N+x(._(2)He^(4))+y(._(-1)e^(0))`
`a=b+4x+0y`
`(a-b)/(4)=x " " ..........(1)`
`c=d+2x-y`
`c-d-(a-b)/(2)=-y`
`y=d+((a-b))/(2)=c`