# Nuclear Fusion

## Some Typical Fusion Reactions, Naturally Occurring Fusion Reactions, Thermonuclear Reactions, Fusion Reactions On Earth

Nuclear fusion is the process by which two **light** atomic nuclei combine to form one heavier atomic nucleus. As an example, a **proton** (the nucleus of a **hydrogen** atom) and a **neutron** will, under the proper circumstances, combine to form a deuteron (the nucleus of an atom of "heavy hydrogen"). In general, the **mass** of the heavier product nucleus is less than the total mass of the two lighter nuclei.

When a proton and neutron combine, for example, the mass of the resulting deuteron is 0.00239 atomic mass unit less than the total mass of the proton and neutron combined. This "loss" of mass is expressed in the form of 2.23 MeV (million **electron** volts) of kinetic **energy** of the deuteron and other particles and as other forms of energy produced during the reaction. Nuclear fusion reactions are like **nuclear fission** reactions, therefore, in the respect that some quantity of mass is transformed into energy.

## Additional topics

- Nuclear Magnetic Resonance - History, Physcial principles, Nuclear spin magnetic moment, Magnetic torque on a nucleus, Nuclear orientation energy
- Nuclear Fission - History, From Uranium Fission To Chain Reaction, The Manhattan Project, 1942-1945, Nuclear Reactors For Electric Power Production
- Nuclear Fusion - Some Typical Fusion Reactions
- Nuclear Fusion - Naturally Occurring Fusion Reactions
- Nuclear Fusion - Thermonuclear Reactions
- Nuclear Fusion - Fusion Reactions On Earth
- Nuclear Fusion - Uncontrolled Fusion Power: The Hydrogen Bomb
- Nuclear Fusion - Peaceful Applications Of Nuclear Fusion
- Nuclear Fusion - Inertial Confinement
- Nuclear Fusion - D-d And D-t Reactions
- Nuclear Fusion - Hope For The Future
- Nuclear Fusion - Cold Fusion
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