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уранијум

A naturally radioactive and very dense element. Mine Uranium contains 0.7 percent of the isotope Uranium-235, needed for fission. Uranium-235 is the principal nuclear fuel material used in today's nuclear power reactors.

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уранијум (U)
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A heavy, naturally radioactive, metallic element (atomic number 92). Its two principally occurring isotopes are uranium-235 and uranium-238. Uranium-235 is indispensable to the ...

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Uranium with the U-235 isotope present at a concentration of 0.711 percent (by weight), that is, uranium with its isotopic content exactly as it is found in nature.

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Uranium in which the U-235 isotope concentration has been increased to greater than the 0.711 percent U-235 (by weight) present in natural uranium.

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The basic building block of all matter. The smallest particle of an element that has the same properties as the element. It consists of a central core called the nucleus that is ...

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The splitting of atoms that results in the release of large amounts of energy. Two or three neutrons are usually released during this event. Fission occurs either naturally or ...

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Carbon based fuel resulting from millions of years of biological decay. Coal, oil, and natural gas are the most common examples.

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The heat exchanger used in some reactor designs to transfer heat from the primary reactor coolant system to the secondary (steam system).

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