One nuclear reaction that can take place in a nuclear reactor may be represented, in part, by the equation
Data for a nucleus and some particles are given in the table below.
Complete the nuclear reaction shown above.
Show that the energy equivalent to 
is 
.
Calculate the binding energy per nucleon, in MeV, of lanthanum-139 (
).
State and explain whether the binding energy per nucleon of uranium-235 (
) will be greater, equal to or less than your answer in (b)(ii).
