A radioactive decay can form an isotope of the original nucleus with the emission of particles

Options

A. four `alpha` and one `beta`
B. one `alpha` and one `beta`
C. one `alpha` and two `beta`
D. one `alpha` and four `beta`

Answer

C

Explanation

`""_(z)^(A)Y overset(alpha)rarr ""_(z-2)^(A-4)Y overset(beta^(-))rarr ""_(z+1)^(A-4)Y^(t) overset(beta^(-))rarr ""_(z)^(A-4)Y`. One `alpha` particle and two `beta`- particles