A nuclear reaction in which two light nuclei combine to form a more massive nucleus is called
(1) addition (3) fusion
(2) fission (4) substitution



Answer :

The term is (3) fusion
Addition isn't a type of reaction
Fission is the splitting of a larger particle in to smaller ones
Substitution is replacing one chemical group with another
A nuclear reaction in which two light nuclei combine to form a more massive nucleus is called a fusion.