DO Baru 8 nucleon. Hiass of one proton c. Calculate the mass in gram of radioactive sample Pb – 214 having an activity 3. 17 x 104 decay/s and half life of 26. 8 minutes. (Avogadro number = 6. 02 x 10 /mole) mace sam is under the tension of 500 N and is tied down
