Uranium
Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-white 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 its isotopes are unstable (with half-lives of the six naturally known isotopes, uranium-233 to uranium-238, varying between 69 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
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Beverley Uranium Mine
Buckles Mine
Cigar Lake Mine
Eldorado Mine (Saskatchewan)
Elkon mine
Gunnar Mine
Husab Mine
Imouraren mine
Jabiluka
A238 mineAdrar Emoles mineAkbastau mineAkdala mineArlit mineAussinanis mineBallekBeaufort West mineBeisa North mineBlyvooruitzicht mineBuffelsfontein uranium mineBăița mineCan-Met MineCluff Lake mineCrow ButteCrucea – Botușana mineDalmatovkoye mineDenison MineDenny Dalton mineDominion mineDriefontein mineErgo mineEtango mineFirawa mineFour Mile uranium mineHaraat mineHartebeestfontein MineHoneymoon Uranium MineIda Dome mineInca mineInkai Uranium Project
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Uranium
Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-white 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 its isotopes are unstable (with half-lives of the six naturally known isotopes, uranium-233 to uranium-238, varying between 69 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
has abstract
El uranio es un elemento quími ...... ba de ser descubierto en 1781.
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L'uranio (dal greco οὐρανός, " ...... rsino negli organismi viventi.
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L'uranium est un élément chimi ...... ssie (9 %) et le Canada (8 %).
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O urânio (homenagem ao planeta ...... tando de urânio de baixo grau.
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Uran (U, łac. uranium) – pierw ...... dowanie toru 232Th neutronami.
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Uran (benannt nach dem Planete ...... ernkraftwerken und Kernwaffen.
@de
Uranium is a chemical element ...... ty. See Nuclear proliferation.
@en
Uranium of uraan is een scheik ...... er, bij verarmd uranium lager.
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Ура́н (устаревший вариант ура́ ...... урана, найденного в природе).
@ru
اليورانيوم هو عنصر كيميائي يرم ...... الناس. انظر الانتشار النووي.
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El uranio es un elemento quími ...... ba de ser descubierto en 1781.
@es
L'uranio (dal greco οὐρανός, " ...... rsino negli organismi viventi.
@it
L'uranium est un élément chimi ...... , y compris dans l'eau de mer.
@fr
O urânio (homenagem ao planeta ...... ente à família dos actinídeos.
@pt
Uran (U, łac. uranium) – pierw ...... śladowych ilości 93Np i 94Pu).
@pl
Uran (benannt nach dem Planete ...... op 238U und zu 0,7 % aus 235U.
@de
Uranium is a chemical element ...... ly in low concentrations of a
@en
Uranium of uraan is een scheik ...... er, bij verarmd uranium lager.
@nl
Ура́н (устаревший вариант ура́ ...... урана, найденного в природе).
@ru
اليورانيوم هو عنصر كيميائي يرم ...... ثاني بعد البلوتونيوم في العنا
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label
Uran (pierwiastek)
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Uran
@de
Uranio
@es
Uranio
@it
Uranium
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Uranium
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Uranium
@nl
Urânio
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Уран (элемент)
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يورانيوم
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