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métal d'uranium

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  • Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and …   Wikipedia

  • Uranium metallurgy — s.Commercial grade uranium can be produced through the reduction of uranium halides with alkali or alkaline earth metals. Uranium metal can also be made through electrolysis of KUF5 or UF4, dissolved in a molten CaCl2 and NaCl. Very pure uranium… …   Wikipedia

  • URANIUM — L’uranium (symbole U, numéro atomique 92) est un élément chimique métallique très dense (d = 19), dur, dont la couleur grise rappelle celle du nickel. Pendant les cent cinquante ans qui suivirent sa découverte, en 1789, par Martin Heinrich… …   Encyclopédie Universelle

  • Uranium in the environment — Uranium in the environment, this page is about the science of uranium in the environment and in animals (including humans). The legal and social issues associated with uranium are discussed elsewhere. This page is a subpage of actinides in the… …   Wikipedia

  • Uranium — Protactinium ← Uranium → Neptunium Nd …   Wikipédia en Français

  • Uranium trioxide — IUPAC name Uranium trioxide Uranium(VI) oxide …   Wikipedia

  • Metal Asylum — Genre Music Presented by Mistress Julyia Opening theme What if I Lost it by Bloodsimple Country of origin United States …   Wikipedia

  • Uranium 233 — Uranium Uranium Protactiniu …   Wikipédia en Français

  • métal — métal, aux [ metal, o ] n. m. • déb. XIIe; lat. metallum « métal, mine » 1 ♦ Corps simple, doué d un éclat particulier (éclat métallique), bon conducteur de la chaleur et de l électricité et formant, par combinaison avec l oxygène, des oxydes… …   Encyclopédie Universelle

  • Uranium ore deposits — are ore deposits which constitute economically recoverable concentrations of uranium within the Earth s crust. DistributionThe distribution of uranium ore deposits is widespread, with sizeable deposits and mines in Australia (40% of EDR [cite… …   Wikipedia

  • Uranium glass — is glass which has had uranium, usually in oxide diuranate form, added to a glass mix prior to melting. The proportion usually varies from trace levels to about 2% by weight uranium, although some 19th century pieces were made with up to 25%… …   Wikipedia

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