Please help w this, v urgent

B = 146

C = 56

There are two types of nuclear reactions  

Fission reaction is the splitting of an atomic nucleus by firing a particle  

Fusion reaction is a combination of two atomic nuclei  

There are several particles involved in atomic nuclei reactions:  

In a nuclear reaction, it is always found that the atomic number (Z) and mass number (A) are the same either before or after the reaction

Reaction(Fission reaction ) :

mass number :

atomic number :

c. 4.54 x 10–12 j happens to be correct