Enriched uranium
Let's keep it short by simply answering these key questions:
Can you list the most important facts and statistics about uranium?
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-white metal located in the actinide series in the periodic table. The pure piece of it looks close to silver or steel, but it is very heavy relative to its size. A uranium atom contains 92 protons and 92 electrons, of which 6 electrons are located in valence shells. Uranium is a decaying element with weak radioactivity; This is because all of its isotopes are unstable in nature (the half-lives of the six natural isotopes of uranium range from 69 years to 4.5 billion years, from uranium-233 to uranium-238).
The most common isotopes of uranium are uranium-238 (which has 146 neutrons, representing approximately 99.3% of the naturally occurring uranium) and uranium-235 (which has 143 neutrons, which is the remaining 0.7% of the naturally occurring element). Uranium is second only to plutonium among the elements with the highest (or heaviest) atomic mass that initially existed in nature. The density of uranium is about 19.1 grams/cubic centimeter at room temperature, meaning that 1 cubic meter of uranium weighs about 19.1 tons. It is thus higher in density than lead by about 70%, but slightly less than gold or tungsten. Uranium occurs naturally in low concentrations in soil, rocks, and water, reaching a few parts per million, and it is extracted commercially from minerals that contain it, such as uraninite.
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