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To get an overview over this process, search for "proton-proton chain reaction" in Wikipedia or other online resources.

In the proton-proton nuclear reaction, either three or five steps occur. Initially, we see the fusion of two hydrogen-1 nuclei to form a hydrogen-2 nucleus. We also need another of these reactions to create another hydrogen-2 nucleus. That's either one or two steps, depending on your point of view. Now we see a hydrogen-2 nucleus fuse with a hydrogen-1 nucleus to create a helium-3 nucleus. And we need two of those helium-3 nuclei, so that's a total of one or two more steps, and yet again it depends on your point of view. Lastly, we see the two helium-3 nuclei fuse to form a helium-4 nucleus (with the release of two hydrogen-1 nuclei). That's a total of three steps or five steps, depending on how you want to look at the first fusion reactions to create hydrogen-2 and helium-3.

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Waldo Mayer

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3y ago

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Related Questions

Does fusion powers many of your nuclear power plants?

Nuclear fusion is used only in experimental installations.


What date did the first fusion generator operate?

The first work on nuclear fusion was performed in 1933 by Ernest Rutherford. The first nuclear fusion "reactor" was built in 1947 by teams in the UK and USSR. To this day no nuclear fusion "reactor" has been able to produce more energy than had to be put into it to get the reaction started, despite many different experiments on many different designs.


Why does the sun give off so many energy?

It gets the energy from nuclear fusion. It is able to carry out this nuclear fusion because of its mass, which pulls the Sun together, and keeps its core hot and dense.


How many fraction of sun supply of hydrogen used for nuclear fusion?

Almost 100% of it.


What is the percentage of current nuclear power plants that use nuclear fusion energy?

Zero, and it will stay zero for many years to come!


Describe the energy of nuclear fusion?

Nuclear fusion has not yet been achieved on Earth but it is the process by which the un and stars are believed to gain their energy. At the moment nuclear reactors use nuclear fission, which is the splitting of radioactive nucleii. Nuclear fussion is the combining, or the fusion, of atoms which would release much much more energy. Many scientists believe that this is the way we need to go to solve the energy crisis.


What are the main reasons why nuclear fusion have not been used in nuclear reactors?

Well, scientists have been researching fusion reactors for over 50 years, but nuclear fusion is much more difficult to achieve than nuclear fission, which is what current nuclear power technology is based on. There are many reasons for this, but while there have been tests and advancements in the field, scientists have yet to a) create a sustainable and stable nuclear fusion reaction and b) create a reaction that has a greater output than input.


Who discovered nuclear fusion in 1944?

Nuclear fusion occurs naturally in stars. Artificial fusion in human enterprises has also been achieved, although it has not yet been completely controlled as an energy source; successful nuclear physics experiments have been performed involving the fusion of many different nuclear species, but the energy output is negligible in these studies. Building upon the nuclear transmutation experiments of Ernest Rutherford done a few years earlier, fusion of light nuclei (hydrogen isotopes) was first observed by Mark Oliphant in 1932; the steps of the main cycle of nuclear fusion in stars were subsequently worked out by Hans Bethe throughout the remainder of that decade. (Text taken from Wikipedia.)


Why is nuclear fusion more harmful than nuclear fission?

Fusion is harder to control/contain than fission. The Sun is fusion energy and we are 150 000 000 kilometers away, it is still dangerous to be exposed to that radiation for many consecutive hours. Inside the Earth, and many rocks, have ongoing fission and it is no trouble to live on the surface of this planet.


What is the difference between a bioreactor and nuclear reactor?

A nuclear reactor uses either nuclear fission or nuclear fusion to generate electricity, while bio-reactors use the excretions of many animals to generate electricity.


You hope that you will some be able to perform nuclear fusion to create electricity using?

It may be possible one day but it will be many years before fusion plants are developed.


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