What is the major difference between electrons reacting and protons and neutrons reacting? a
change in mass
b
change in energy
c
change in organization
d
all of the above

How is a nuclear change or reaction fundamentally different from a chemical reaction?

(1) Nuclear reactions involve a change in an atom's nucleus, usually producing a different element. Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Hope this helps! :)

your answer would be a. 12.5 kg