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Fission reactions are sustained by normal decay of radioactive material. All you need is a sufficient quantity of it in a small enough space and you can have a controlled or uncontrolled reaction. Fusion requires the collision of atoms at very high energies, something that is not easily done. That requires a particle accelerator or the blast from a fission reaction to achieve.
What else can I help you with?
Does fission or fusion occur in the sun?
Fusion occurs in the sun.
Does fusion or fission occur in the sun?
Fusion occurs in the sun.
Why a fission reaction is neccasary for fusion reaction?
It isn't, in general. Thermonuclear bombs use a fission bomb to generate the heat and pressure required to start the fusion process, but there are other ways of doing it (stars do so by gravity, for instance).
Detonation of a fusion type hydrogen bomb is started by?
Detonation of a fusion hydrogen bomb is initiated by the primary fission bomb, which generates high temperatures and pressures needed to trigger fusion reactions in the hydrogen isotopes. The fission bomb compresses and heats the fusion fuel to the point where nuclear fusion reactions can occur, releasing vastly more energy than the fission reaction alone.
How is fusion used in a hydrogen bomb?
a hydrogen bomb is a fusion bomb. even though in standard types of hydrogen bombs 90% of the yield is fission, caused by uranium-238 fission by 15 MeV neutrons from the fusion reaction.
Does fusion reaction occur in an atomic bomb?
Yes, fusion reactions occur in a hydrogen bomb, which is a type of nuclear bomb. The high temperatures and pressures generated by the fission reaction in the bomb can trigger fusion reactions between hydrogen isotopes. This fusion reaction releases a large amount of energy, contributing to the destructive power of the bomb.
Does fission or fusion occur in the sun?
Fusion occurs in the sun.
Does fusion or fission occur in the sun?
Fusion occurs in the sun.
Why a fission reaction is neccasary for fusion reaction?
It isn't, in general. Thermonuclear bombs use a fission bomb to generate the heat and pressure required to start the fusion process, but there are other ways of doing it (stars do so by gravity, for instance).
What is sun fission?
Fission does not occur in the sun, it is fusion which produces the sun's energy
Detonation of a fusion type hydrogen bomb is started by?
Detonation of a fusion hydrogen bomb is initiated by the primary fission bomb, which generates high temperatures and pressures needed to trigger fusion reactions in the hydrogen isotopes. The fission bomb compresses and heats the fusion fuel to the point where nuclear fusion reactions can occur, releasing vastly more energy than the fission reaction alone.
When does fission occur in a star?
Never, only fusion
How is fusion used in a hydrogen bomb?
a hydrogen bomb is a fusion bomb. even though in standard types of hydrogen bombs 90% of the yield is fission, caused by uranium-238 fission by 15 MeV neutrons from the fusion reaction.
Can fission occur after fusion?
No, fission and fusion are two distinct nuclear reactions. Fusion involves the joining of atomic nuclei to release energy, while fission involves the splitting of atomic nuclei. They are not directly connected processes, so fusion does not lead to fission.
What is a nuclear explostion?
A nuclear explosion is the uncontrolled reaction (either fusion of fission) of nuclei and nuclei (fusion) or nuclei and neutrons (fission). Both processes produce vast amoutns of energy, as well as more nuclei or neutrons (for fusion or fission, respectively) to continue the chain reaction. This energy, if not moderated (such as in the case of a nuclear reactor, in which this reaction is harnased to produce electricity), explodes with a force many many times that of an equal quantity of dynamite (on the order of tens or even hundreds of thousands of times more force) or other conventional explosives.
For a chain reaction occur each fission must produce at least ____more fission reaction?
For a chain reaction to occur, each fission must produce at least one more fission reaction. This leads to a self-sustaining reaction where each fission event triggers more fission events, resulting in a continuous release of energy.
Can a hydrogen nuclear fission reaction restart the hydrogen fusion reaction?
No, hydrogen does not fission. Fission only occurs in heavy elements that are well past the peak in binding energy per nucleon (where binding energy per nucleon is decreasing), and fusion can only occur in light elements which are in the portion of the binding energy curve where binding energy per nucleon is increasing. When you fission a heavy element or fuse light elements, the product nuclei have higher binding energies per nucleon than the original element. This is where the energy release comes from. Check out the Wikipedia article on nuclear binding energy.
