In the nuclear decay given below
the particles emitted in the sequence are
Key Idea In a nuclear reaction conservation of charge number and mass number must hold good.
Alpha particles are positively charged particles with charge +2e and mass 4m. Emission of an -particle reduces the mass of the radionuclide by 4 and its atomic number by 2. -particles are negatively charged particles with rest mass as well as charge same as that of electrons. -particles carry no charge and mass.
Radioactive transition will be as follows