Consider the following.

n $+235$U $96$Sr $+138$Xe $+2$ n

$($a$)$

Calculate the energy $($in MeV$)$ released in the neutron$-$induced fission reaction above, given m$(96$Sr$)=95\mathrm{.}921681$ u and m$(138$Xe$)=137\mathrm{.}913989$ u$.($Assume $1$ u $=931\mathrm{.}5$ MeV$/$c$2.)$

MeV

$($b$)$

Confirm that the total number of nucleons and total charge are conserved in this reaction. $($The electron family number is abreviated "efn".$)$

Ai $=$ Af$=$ efni $=$ efnf$=$