Lambert,+Andrew

=__**URANIUM -** U__=
 * Boiling point:** 4200 degrees celcius or 710 degrees farenheit


 * Melting point:** 1405.3 degrees celcius or 2070 degrees farenheit


 * Specific gravity/density**: 19.1 g/cm^3


 * Number of protons, neutrons and electrons**: 92 protons, 146 neutrons, and 92 electrons.


 * Atomic mass**: 238.03


 * Atomic number**: 92


 * Electron configuration & orbital notation**:


 * Number of valence electrons**: 2


 * How, when, and who discovered**: discovered in a yellow glass from 79 AD near naples Italy. Discovered by martin Klaproth in 1789.


 * Where and how is it produced**: Mined at open pit, underground, and ISL mines in Canada, U.S, Australia, Kazakhstan, Niger, Romania, Nambia, Ubekistan.


 * Chemical And physical properties**: //physical//- shiny silver in pure form.

//Chemical//- in oxidizing environment it decays & transforms into a hexavalent state.


 * Minerals, compounds, or ores in which its found**: found in an ore called pitchblende

//2//) tarnishes rapidly in air.
 * Two common chemical reactions**: //1//)reacts with cold water once divided


 * Industrial or commercial uses**: produces fission energy


 * Cost or value**: $130 per Kg

diagram of bohr model: __**LINKS**__ @http://www.chemicool.com/elements/uranium.html Mary Elvira Weeks, Discovery of the Elements., (2003) p56. Kessinger Publishing Co.
 * Unusual facts:** 1 Kg of u235 has as much energy as 1500 tons of coal.

@http://www.webelements.com/uranium/ [|Copyright]1993-2012 [|Mark Winter] [[|The University of Sheffield]and WebElements Ltd, UK]. All rights reserved

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