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= Element=Uranium ( U ) = = Atomic Number=92 =

Uranium is the heaviest and last naturally occuring element in the pereodic table. Uraniam is at the beginning of the actinide family on the periodic table. The actinide family has elements with atomic numbers from 90 to 103. Uranium was thought of as a not very rare element but it is now considered to be more valuable then mercury (Hg), antimony (Sb), silver (Ag) or cadmium (Cd) and is about as valuable as molybdenum (Mo) or arsenic (As). It is found in lots of minerals such as pitchblende, uraninite, carnotite, autunite, uranophane, and tobernite. It is also found in phosphate rock, lignite, monazite sands, and can be recovered to make a profit from these sources.
 * Sources:**

Uranium is a little softer then steel, and is attacked by cold water when in a finely divided state. Uranium can be extended and shaped by hammering or by pressure from rollers. Uranium can also be pressed or rolled out thin, drawn out into wire or threads and can undergo change of form without breaking. Uranium is also slightly magnetic. In air, the Uranium becomes coated with a layer of oxygen. Acids dissolve the metal, but it is unaffected by soluble mineral salts.
 * Properties:**

35,000 tonnes of Uranium is produced a year, mainly in Canada, Zaire, Czech Republic and USA. Uranium used to be used for many centuries to produce glass. Now it is used as a fuel in nuclear reactors and in nuclear bombs.Depleted Uranium is used in casings of armor piercing arterial shells, armor plating on tanks and as ballast in the wings of some large aircraft. Uranium in the U.S.A. is controlled by the U.S. Nuclear Regulatory Commission.
 * Uses Of Uranium**

Finely divided Uranium metal, being able to ignite randomly in air and producing sparks by friction, presents a fire hazard. When you work with uranium you need to know the maximum allowable concentrations that may be inhaled or ingested.
 * Handling:**

> > > > Uranium In Other Language's.. > > References: > []
 * **[[image:http://z.about.com/d/chemistry/1/0/0/R/uranium.jpg width="217" height="216" align="right"]]Discovered By:** Martin J. Klaproth
 * **Discovered In:** Berlin Germany
 * **Discovery Year:** 1789
 * **Name Origin/ Where The Name Uranium Comes From:**From planet Uranus
 * **Latin:** Uranium
 * **Czech:** Uran
 * **Croatian:** Uranij
 * **French:** Uranium
 * **German:** Uran - r
 * **Norwegian:** Uran
 * **Portuguese:** Urânio
 * **Russian:** [[image:http://envirochem.us/images/periodic/Russian/U.gif caption="graphic of Russian name for the element Uranium"]]
 * **Spanish:** Uranio[[image:http://www.webelements.com/_media/elements/pics/U-l4-1.jpg width="129" height="211" align="right"]]
 * **Swedish:** Uran
 * []

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