Radioactive Decay, Nuclear Fission and Nuclear Fusion Radioactive Decay, Nuclear Fission and Nuclear Fusion 8 August Chemistry Radioactive Decay, Nuclear Fission and Nuclear Fusion When elements undergo radioactive decay the atoms of one element are changed into the atoms of another element when an alpha or beta particle is emitted from an unstable nucleus. When a nucleus disintegrates and emits an alpha particle it is alpha decay, the alpha particle emitted contains two protons and two neutrons which is equivalent to a helium nucleus being released. Alpha decay occurs because there are too many protons, which causes excessive repulsion within the nucleus, and in an attempt to reduce the repulsion the helium nucleus will be emitted from the atom.
In fission, the nucleus splits, either through radioactive decay or because it has been bombarded by other subatomic particles known as neutrinos.
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|Nuclear Fission and Fusion Essay Sample||By Duke Energy January 30, Inside the sun, fusion reactions take place at very high temperatures and enormous gravitational pressures Inside the sun, fusion reactions take place at very high temperatures and enormous gravitational pressures The foundation of nuclear energy is harnessing the power of atoms.|
The resulting pieces have less combined mass than the original nucleus, with the missing mass converted into nuclear energy. Controlled fission occurs when a very light neutrino bombards the nucleus of an atom, breaking it into two smaller nuclei.
The destruction releases a significant amount of energy, as much as times that of the neutron that started the procedure, as well as releasing at least two more neutrinos. Controlled reactions of this sort are used to release energy within nuclear power plants.
Uncontrolled reactions can fuel nuclear weapons.
Radioactive fission, where the center of a heavy element spontaneously emits a charged particle as it breaks down into a smaller nucleus. This reaction does not occur often and happens only with the heavier elements. Fusion Essay Fusion is the reaction in which two atoms of hydrogen combine together to form an atom of helium.
In the process some of the mass of the hydrogen is converted into energy. Deuterium is plentifully available in ordinary water. Tritium can be produced by combining the fusion neutron with the abundant light metal lithium.
Thus fusion has the potential to be an inexhaustible source of energy. To make Fusion happen, the atoms of hydrogen must be heated to very high temperatures so they are ionized, forming a plasma, and have sufficient energy to fuse, and then be held together long enough for fusion to occur.
The sun and stars do this by gravity. More practical approaches on earth are magnetic confinement, where a strong magnetic field holds the ionized atoms together while they are heated by microwaves or other energy sources, and inertial confinement, where a tiny pellet of frozen hydrogen is compressed and heated by an intense energy beam, such as a laser, so quickly that fusion occurs before the atoms can fly apart.Fission and Fusion Essay.
Fission Essay. Fission is the act or process of splitting into two parts - Fission and Fusion Essay introduction.
It is also a nuclear reaction in which an atomic nucleus splits into fragments releasing from million to several hundred million electron volts of energy. Radioactive Decay, Nuclear Fission and Nuclear Fusion Essay Sample. The fundamental difference between radioactive decay and nuclear fission is that, whereas radioactive decay is spontaneous, nuclear fission must be induced.
Essay on Fission Or Fusion - Fission or Fusion I think that right now, fission is the only way that we can get more energy out of a nuclear reaction than we put in. First, the energy per fission is very large.
In practical units, the fission of 1 kg ( lb) of uranium releases million kilowatt-hours as heat. Fission and Fusion Essay. Fission Essay. Fission is the act or process of splitting into two parts - Fission and Fusion Essay introduction.
It is also a nuclear reaction in which an atomic nucleus splits into fragments releasing from million to several hundred million electron volts of energy.
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