The half-life period of RaB(.82Pb214) is 26.8min. The mass of one curie of RaB is The half-life period of RaB(.82Pb214) is 26.8min. The mass of one curie of RaB is June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 30 - Nuclear Physics ,