Mills,+Hunter

Uranium 238 It was discovered in 1789, by Martin Heinrick Klaproth while he was trying to isolate a metal. It's symbol is U and the atomic number is 92. The atomic mass is 238.029. It has 6 valance electrons, 92 protons and electrons, and 146 neutrons. The [|Density] of uranium is 18.95 g/cm cubed. The [|boiling] point is 4131 degrees Celsius and the melting point is 1138 degrees Celsius. The electron configuration for uranium is 2.8.18.32.21.9.2, and it's orbital notation is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f3 6s2 6p6 6d1 7s2. It is [|mined] and produced mostly in Australia, Kazakistan, and Canada. Uranium is mined form either a open pit or a underground mine and it is separated from the ore by a chemical reaction. (Uranium is found in hundreds of minerals including uraninite, carnotite, autunite, uranophane, torbernite, and coffinite). It is then crushed into powder and transformed into U3O8 which is Triuranium octaoxide. Uranium has many proprieties such as being radioactive, malleable, ductile, dense, and hard. Two common chemical reactions of uranium are with cold water and acids. Uranium also tarnishes. It has many uses but it is mostly used as a nuclear fuel and it costs about $90.00 a pound. Uranium was named after the planet Uranus discovered eigh t years earlier than it was. It ranks 48th among the most abundant elements found in natural crustal rock. Uranium was used to create the first atomic bomb used in World War II and it was dropped on Hiroshima, Japan.

Rsc.org http://www.rsc.org/periodic-table/element/92/uranium G. W. C. Kaye 2014

Webelements.com http://www.webelements.com/uranium/ MarkWinter 2012

Megauranium.com http://www.megauranium.com/properties/ Wendy Warhaft 2010