When two nuclei are forced into one another, they repel due to electrostatic repulsion between two protons. But when some energy is provided to the nuclei, then the nuclei are able to fuse with each other. The process is called as the nuclear fusion(fusion of nuclei). Thus new elements are formed.In the process, a heavy nucleus, energy and a neutron(usually) is released.
Main uses of nuclear fusion are electric generation and in hydrogen bomb.
Interstellar reactions mainly consist of fusion reactions. The fusion of four hydrogen atoms give rise to an helium atom along with the release of energy and a neutrino. Further fusion leads to formation of heavier elements. Nuclear fusion is the main reaction that runs a star. When the fusion between atoms stops, then the star stops emitting energy and consumes itself.
Interstellar reactions mainly consist of fusion reactions. The fusion of four hydrogen atoms give rise to an helium atom along with the release of energy and a neutrino. Further fusion leads to formation of heavier elements. Nuclear fusion is the main reaction that runs a star. When the fusion between atoms stops, then the star stops emitting energy and consumes itself.
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