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uranium
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The answer URANIUM has 109 possible clue(s) in existing crosswords.
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The word URANIUM is VALID in some board games. Check URANIUM in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of uranium in various dictionaries:
noun - a heavy toxic silvery-white radioactive metallic element
noun - a radioactive element
URANIUM - Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium ...
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Possible Jeopardy Clues |
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The gram you're holding of this element's Isotope 238? In about 4 1/2 billion years, it'll be 1/2 gram |
Martin Klaproth discovered this element in 1789 & named it for a discovery of 1781 |
Chemical symbol U, this metallic element is used as a fuel in nuclear reactors & weapons |
Some oxides of this silver-white element have been used to color glass & ceramics |
In 1938 2 Germans bombarded this element, No. 92, with neutrons, but didn't realize they'd induced a fission reaction |
Mills in the Gas Hills of Wyoming refine & press this element into the yellowcake form |
This element's isotope 235 has a half-life of about 700 million years |
The last element in the table that occurs widely in nature, it was named for a planet discovered 8 years before |
Kazakhstan & Australia combine to mine half of the world's production of this element needed for nuclear power |
Only material occuring in nature that is readily fissionable is an isotope of this |
Uranium description |
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Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99%) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite.In nature, uranium is found as uranium-238 (99.273999.2752%), uranium-235 (0.71980.7202%), and a very small amount of uranium-234 |