Question

F.     A sample of Mn-56 is to have an activity of 105 Bq at the end of a 48 hour experiment. What mass of Mn-56 is required at the beginning of the experiment and what is its initial activity? The atomic mass of Mn-56 is 55.939 u.

G.    Cl-37 is struck by a proton; the subsequent compound nucleus then ejects a 1 MeV neutron. There is no gamma emission in this reaction. The atomic mass of the product nucleus is 36.96678 u. Write the reaction equation. Find the kinetic energy of the incident proton.

what are you asking it's (Mn) 56 isotope (t)

half-life (T_1/2) 2.578

hours

Answer 1