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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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It was an atom of this element that Otto Hahn split in 1938 |
The fissionable 235 isotope makes up less than 1% of this metal in nature |
Until 1940 this element had the highest known atomic number |
Its atomic weight is 238 |
This radioactive metal is Niger's No. 1 export |
It was an atom of this element that Otto Hahn split in 1938 |
It comes in radioactive isotopes like 235 & 238 |
The first atomic bomb to be dropped in warfare used an isotope of this element as its explosive |
It's a heavy grayish element |
Discovered in Colorado in the 1950s, coffinite is an ore that is more than 60% this radioactive metal |
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 |