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Encyclopedia > Fission products

Fission products are the residues of Sketch of induced nuclear fission, a neutron (n) strikes a uranium nucleus which splits into daughter products, and releases more neutrons to continue the process, and energy in the form of gamma and other radiation In physics, fission is a nuclear process, meaning it occurs in the nucleus of an... fission processes.


In a Nuclear power station at Leibstadt, Switzerland. The nuclear reactor is inside the dome-shaped containment building. A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate (as opposed to a nuclear explosion, where the chain reaction occurs in a split... nuclear reactor, the buildup of fission products in the fuel eventually leads to loss of efficiency, and in some cases to instability. They contribute most of the short and medium term radioactivity of high-level A Russian fissile material storage facility Radioactive waste is waste material containing radioactive chemical elements which does not have a practical purpose. It is often the product of a nuclear process, such as nuclear fission. Waste can also be generated from the processing of fuel for nuclear reactors or nuclear... nuclear waste produced from spent reactor fuel. They also appear to some extent in the primary coolant.


For fission of General Name, Symbol, Number Uranium, U, 92 Chemical series Actinides Period, Block 7 , f Density, Hardness 19050 kg/m3, ND Appearance silvery-white metal Atomic properties Atomic weight 238.0289 amu Atomic radius (calc.) 175 (ND) pm Covalent radius ND pm van der Waals radius 186 pm Electron configuration [Rn... Uranium-235 the most common fission products include isotopes of General Name, Symbol, Number iodine, I, 53 Series halogens Group, Period, Block 17 (VIIA), 5 , p Density, Hardness 4940 kg/m3, no data Appearance violet-dark grey, lustrous Atomic properties Atomic weight 126.90447 amu Atomic radius (calc.) 140 (115) pm Covalent radius 133 pm van der Waals radius 198... Iodine, General Name, Symbol, Number Caesium, Cs, 55 Series Alkali metals Group, Period, Block 1(IA), 6, s Density, Hardness 1879 kg/m3, 0.2 Appearance silvery gold Atomic properties Atomic weight 132.90545 amu Atomic radius (calc.) 260 (298) pm Covalent radius 225 pm van der Waals radius no data... Caesium, General Name, Symbol, Number Strontium, Sr, 38 Series Alkaline earth metal Group, Period, Block 2 (IIA), 5, s Density, Hardness 2630 kg/m3, 1.5 Appearance silvery white metallic Atomic properties Atomic weight 87.62 amu Atomic radius 215.1 pm Covalent radius 192 pm van der Waals radius no... Strontium, General Name, Symbol, Number xenon, Xe, 54 Chemical series Noble gases Group, Period, Block 18 (VIIIA), 5, p Density, Hardness 5.9 kg/m3(273 K), NA Appearance colorless Atomic properties Atomic weight 131.293 amu Atomic radius (calc.) no data (108) pm Covalent radius 130 pm van der Waals... Xenon and Barium is also the Latin name for the city Bari in Italy. General Name, Symbol, Number Barium, Ba, 56 Series alkaline earth metals Group, Period, Block 2(IIA), 6, s Density, Hardness 3510 kg/m3, 1.25 Appearance silvery white Atomic Properties Atomic weight 137.327 amu Atomic radius (Calc... Barium.


  Results from FactBites:
 
Fission product - Wikipedia, the free encyclopedia (2230 words)
If a graph of the mass or mole yield of fission products against the atomic mass of the fragments is drawn then it has two peaks, one in the area strontium through to palladium and one at iodine through to neodymium.
Some fission products are useful as beta and gamma sources in medicine and industry, see common beta emitters and commonly used gamma emitting isotopes for more details.
The mixture of radioactive fission products found in the fallout from a nuclear bomb are very different in nature to those found in spent power reactor fuel.
Nuclear fission - Wikipedia, the free encyclopedia (2999 words)
Fission is useful as a power source because some materials, called nuclear fuels, both generate neutrons as part of the fission process and also undergo triggered fission when impacted by a free neutron.
Fission products have, on average, about the same ratio of neutrons and protons as their parent nucleus, and are therefore usually unstable because they have proportionally too many neutrons compared to stable isotopes of similar mass.
Fission products tend to be beta emitters, emitting fast-moving electrons to conserve electric charge as excess neutrons convert to protons inside the nucleus of the fission product atoms.
  More results at FactBites »


 
 

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