Three deuteron nuclei( 1 H 2) fuse, 21.6 MeV is energy released and nucleus of helium( 2 He 4) is formed.
In this process, a large amount of energy is released.
Nuclear fusion takes place at very high temperature approximately about 10 7 K and at very high pressure 10 6 atmosphere.
Hydrogen bomb is based on nuclear fusion. The source of Sun’ s energy is the nuclear fusion taking place at sun.
Thermonuclear Energy
The energy released during nuclear fusion is know as thermonuclear energy. Protons are needed for fusion while neutrons are needed for fission process.