A radioactive sample contains 2.2 mg of pure which has half life period of 1224 seconds. Calculate
(i) the number of atoms present initially.
(ii) the activity when 5μg of the sample will be left.
A radioactive uncleus undergoes a series of decay according to the scheme
If the mass number and atoms number of A are 180 and 72 respectively, what are there number for A4?
Complete the following nuclear reactions
(a) 4Be9 + 1H1 →3Li6 + ................
(b) 5B10 + → + ..............
Calculate the amount of energy released during the decay of
1.atomic mass of =238.05079u
2. atomic mass of = 234.04363
3.atomic mass of = 4.00260
lu = 931.5 MeV/c2.
Is this decay spontaneous? Give reason.