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Nuclear fission is the splitting up of big atomic nuclei. Uranium is quite a large nuclei. Each time a uranium atom splits up, it spits out two or three neutrons. One of which might hit another nuclei causing it to split - thus keeping the chain reaction going. The uranium atom - when hit by a neutron splits into Barium and Krypton.
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∙ 11y ago
Wiki User
∙ 14y agoFission is induced by colliding 235U atoms with neutrons. The collision does not always cause fission, but if it does not, there is a chance that the collision will produce the next higher isotope, and this will undergo fission when collided with a neutron. This goes on through a series of isotopes of uranium, each with a chance of undergoing fission. So most 235U atoms in a neutron rich environment will eventually undergo fission.
Wiki User
∙ 13y agoVia a chain reaction where each fissioning uranium nucleus emits 2 to 3 additional neutrons, causing the reaction to propagate at an exponential rate until the vaporized mass of uranium disassembles back to a subcritical configuration. This takes about 1 microsecond.
In a reactor, the control rods absorb the extra neutrons holding the reaction to a constant rate. The mass of uranium remains solid and just critical. The energy can be extracted in a controlled manner to generate electricity.
Wiki User
∙ 12y agoA neutron colides with it, and it splits into iodine and cerium, realeasing more neutrons.
P.S. I am eleven years old
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How do neutrons electrons and protons relate to nuclear energy?
These are the constituents of atoms. Nuclei are made up of protons and neutrons. Useful nuclear energy is only obtained from a few nuclei which can be made to fission and release energy. The two main ones are Uranium235 and Plutonium239.
How does the energy released by fusion compare in magnitude with that released by fission?
In a fission reactor which has been operating at a steady power level, on shutdown the fission reactions stop at once, but the radioactivity of the fission products in the fuel still produces thermal energy. This is about 6.5 percent of the previous power level immediately, dropping to about 1 percent after 1 hour. In the case of fusion, there are no fission products so this comparison does not exist, in fact if fusion reactors can ever be made, this is one of the advantages over fission reactors.
What is fission made from?
Nuclear fission occurs in a few elements and then only in certain isotopes, best known are uranium-235 and plutonium-239. In these cases capture of a neutron causes the nucleus to split up into two lighter pieces, and for neutrons to be emitted. This enables a chain reaction to be started.
What causes nuclear reactions?
an atom has a part called nucleus which can be split apart.When this is done a tremedous amount of energy is released.The energy is both heat and light if this is energy is let out slowly then it can be harnessed to make electricity if it is let out all at once it will cause nuclar energy bdgrejdxhjhtm
What does energy made from split atoms mean?
fission
Comparison of fission fusion and transmutation?
Fission is the splitting of heavy nuclei, mostly Uranium235 but also Plutonium 239, which is made to happen in nuclear fission reactors, and releases energy. Transmutation of elements occurs in this process as when the heavy nucleus splits, two lighter nuclei of other elements such as caesium, strontium, iodine, are formed, these are the fission products. Fusion is the joining together of two nuclei, the ones being experimented with being deuterium and tritium, both isotopes of hydrogen. These transmute to helium during fusion.
Does eubacteria reproduce by binary fission?
No, eukaryotic cells undergo mitosisOnly Prokaryotes divide by binary fission
How do neutrons electrons and protons relate to nuclear energy?
These are the constituents of atoms. Nuclei are made up of protons and neutrons. Useful nuclear energy is only obtained from a few nuclei which can be made to fission and release energy. The two main ones are Uranium235 and Plutonium239.
How is the energy in the reactor made to drive a turbine?
The fuel in the core of a nuclear reactor goes into a chain reaction of nuclear fission. This happens because atoms of some isotopes in the fuel undergo spontaneous fission, producing neutrons, which cause other atoms to undergo fission, and so on. The fission produces a lot of heat. The heat is typically used to boil water, which is used to turn a turbine. And finally, the turbine turns a generator to make electricity.
Does nuclear fission take place in an uranium bar?
Yes, with a rather unimportant qualification. There are isotopes of uranium that do not undergo fission, but it is unlikely a bar would be made from any of them because they have short half lives and are expensive to produce.
What three isotopes that can undergo nuclear fission?
There are many isotopes, especially of the trans-Uranium elements which can undergo nuclear fission. The isotopes which are used in nuclear reactors are Uranium-233, Uranium-235 and Plutonium-239, because these isotopes are more readily available than other fissionable isotopes. Uranium-235 occurs naturally, Uranium-233 can be made by neutron irradiation of Thorium-232 and Plutonium-239 can be made by neutron irradiation of Uranium-238.
Can hydrogen undergo alpha decay?
No, it cannot. Fission is the "splitting" of an atom, and a hydrogen atom will not fission. Some hydrogen atoms have a neutron stuck to the proton in their nucleus. Some even have two neutrons stuck to that proton. These neutrons can be "knocked loose" in something like a nuclear chair reaction in a weapon. The neutrons then can contribute to the building of the nuclear chain reaction. But fission doesn't happen to hydrogen.
How does the energy released by fusion compare in magnitude with that released by fission?
In a fission reactor which has been operating at a steady power level, on shutdown the fission reactions stop at once, but the radioactivity of the fission products in the fuel still produces thermal energy. This is about 6.5 percent of the previous power level immediately, dropping to about 1 percent after 1 hour. In the case of fusion, there are no fission products so this comparison does not exist, in fact if fusion reactors can ever be made, this is one of the advantages over fission reactors.
Who made fission?
no one
What is fission made from?
Nuclear fission occurs in a few elements and then only in certain isotopes, best known are uranium-235 and plutonium-239. In these cases capture of a neutron causes the nucleus to split up into two lighter pieces, and for neutrons to be emitted. This enables a chain reaction to be started.
The nucleus is made up of what?
The nucleus of an atom is made up of Protons and Neutrons. Electrons orbit around the nucleus.
What causes nuclear reactions?
an atom has a part called nucleus which can be split apart.When this is done a tremedous amount of energy is released.The energy is both heat and light if this is energy is let out slowly then it can be harnessed to make electricity if it is let out all at once it will cause nuclar energy bdgrejdxhjhtm
