1. Initially, a particular sample has a total mass of 390 gramsand contains 64 ⨯ 1010 radioactive nuclei. These radioactive nucleihave a half life of 1 hour. (a) After 4 hours, how many of theseradioactive nuclei remain in the sample (that is, how many have notyet experienced a radioactive decay)? Note that you can do thisproblem without a calculator. ⨯ 1010 radioactive nuclei (b) Afterthat same amount of time has elapsed, what is the total mass of thesample, to the nearest gram? g
A single atom of iron-56 has a mass, in atomic mass units, of55.93439375 u.
(a) Determine the mass defect, in atomic mass units.
u
(b) Determine the total binding energy, in MeV.
MeV
(c) Determine the average binding energy per nucleon.
MeV
