A radioactive atom `X` emits a `beta-`particle to produce an atom `Y` which then emits an Particle
Channel: Doubtnut
Date: 2020-01-19

A radioactive atom `X` emits a `beta-`particle to produce an atom `Y` which then emits an Particle to give an atom `Z` (1) the atomic number of `X` is less than that of `Z`. (2) the atomic number of `Y` is less than that of `Z`. (3) the mass number of `X` is the same as that of `Y`.