A radioactive isotope #""_Z^XA# decay and emits one alpha particle and two beta particles consecutively. How to write the formula for the nuclides produced?

1 Answer
Apr 19, 2018

#""_Z X^A to ""_(Z-2) Y^(A-4) to ""_(Z-1) U^(A-4) to ""_Z X^(A-4)#


In alpha decay, the mass number decreases by 4 and the atomic number by 2.

In beta decay, the mass number stays unchanged, the atomic number increases by 1.