Chemical Kinetics Part 1

Such reaction in which two lighter nucleus are fused together to form a heavier nuclei is called nuclear fusion.
NOTE : In hydrogen bomb, a mixture of deuterium oxide (H2O) and tritium Oxide (T2O) is enclosed in a space surrounding an ordinary atomic bomb. The temperature produced by the atomic bomb initiates the fusion reaction between ‌1H3 and ‌1H2 releasing a large amount of energy.