In addition, much of the larger part of uranium, Uranium-238, which cannot split, grabs on to neutrons and turns into Plutonium-239, the most radioactive substance known.
What does U-238 stand for?
U-238 stands for Uranium-238
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Samples in periodicals archive:
When one says that uranium-238 has a half-life of 4.
Most nuclear reactors today are light water reactors (LWR), cooled by water and fueled by uranium-238, or U-238 (the most common naturally occurring uranium isotope) and 4% to 5% U-235.
The odourless and tasteless gas is generated by decay of uranium-238 (a natural radioactive element present in all rocks and soil in varying degrees).
In either the generation of electricity or the creation of a nuclear weapon, natural uranium ore must be refined and enriched to increase the number of fissile (and rare) uranium-235 isotopes, or plutonium must be created by bombarding common uranium-238 isotopes with neutrons and then separating that plutonium from fission waste products.
36 In the extremely long-lasting radioactive decay sequence used to date ancient rocks, uranium-238 eventually becomes a stable isotope of which element?
36In the extremely long-lasting radioactive decay sequence often used by scientists to find the age of ancient rocks, uranium-238 eventually becomes a stable isotope of which element?
After chemically removing the high-level wastes, the recoverable isotopes in spent fuels and their half lives are: Uranium-235 710 million years Uranium-238 4.