Uranium-235 - Wikipedia
网页Uranium-235 (235 U or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exists in nature as a primordial nuclide. Uranium-235 has a half-life of 703.8 million years.
Uranium-235 (U-235) and Uranium-238 (U-238) | Radiation …
网页Uranium (U-235 and U-238) is a heavy metal that is naturally occurring in the environment. It can be found in almost all rock, soil, and water. Ingesting or inhaling large concentrations of uranium can cause severe health effects.
Uranium-235 (U-235) | Definition, Uses, Half-Life, & Facts
网页2024年9月5日 · uranium-235 (U-235), radioactive isotope of the element uranium with a nucleus containing 92 protons and 143 neutrons. Uranium-235 is the only naturally occurring fissile material; that is, the uranium-235 nucleus undergoes nuclear fission when it collides with a slow neutron (a neutron with a kinetic energy less than 1 electron volt).
Uranium-235 - isotopic data and properties - ChemLin
网页The following table shows the atomic nuclei that are isotonic (same neutron number N = 143) and isobaric (same nucleon number A = 235) with Uranium-235. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Nuclear Fuel Facts: Uranium - Department of Energy
网页2016年11月15日 · Low Enriched Uranium – contains a 235 U concentration between 0.711 percent and 20 percent. Most commercial reactor fuel uses low enriched uranium (LEU) enriched to between 3 percent and 5 percent 235 U. Uranium between 3 and 5 percent 235 U is sometimes referred to as “reactor-grade uranium.”
Why is Uranium-235 ideal for nuclear power? - HowStuffWorks
网页2024年3月7日 · Uranium-235 (U-235) is ideal for nuclear power because it can undergo induced fission, where its nucleus splits after absorbing a neutron, releasing a significant amount of energy (about 200 MeV) and generating more neutrons to continue the process.
The Fission Process | MIT Nuclear Reactor Laboratory
网页When a U-235 nucleus absorbs an extra neutron, it quickly breaks into two parts. This process is known as fission (see diagram below). Each time a U-235 nucleus splits, it releases two or three neutrons.
German submarine U-235 - Wikipedia
网页German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-235 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. [3] She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft …
Uranium Enrichment | NRC.gov
网页2020年12月2日 · Enriching Uranium. The nuclear fuel used in a nuclear reactor needs to have a higher concentration of the U 235 isotope than that which exists in natural uranium ore. U 235 when concentrated (or "enriched") is fissionable in light-water reactors (the most common reactor design in the USA).
Uranium-235 | U | CID 61784 - PubChem
网页Uranium-235 | U | CID 61784 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.