In the uranium radioactive series, the initial nucleus is ₉₂²³⁸ U and that the final nucleus is ₈₂²⁰⁶ ~Pb . When uranium nucleus decays into lead, the number of -particles and -particles emitted are

Step-by-step solution

For emission, the atomic number decreases by 2 and mass number decreases by 4. No. of particles emitted = 238-206 4 =8 New atomic number =92-(8 2)=76 For -emission, only the atomic number increases by 1. No. of -particles emitted =82-76=6