The explosive in a Hydrogen bomb is a mixture of 1H2,1H3 and 3Li6 in some condensed form. The chain reaction is given by
3Li6+0n1→2He4+1H3
1H2+1H3→2He4+0n1
During the explosion the energy released is approximately
[Given; M(Li)=6.01690 amu,M(1H2)=2.01471 amu,M(2He4)=4.00388 amu, and 1 amu=931.5 MeV]