Uranium was discovered in 1789 by Martin Heinrich Klaproth as an oxide and obtained as a pure metal By Eugene Melchior Peligot in 1841.
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Radium exist in very small concentrations in uranium ores.
Natural polonium exist in uranium and thorium ores.
Discoverers of actinium: Andre Louis Debierne - 1899 Fritz Giesel - 1902 Actinium is found in uranium minerals.
Uranium was disvovered (as an oxide) in 1789 in Germany by Martin Heinrich Klaproth; but the mineral pitchblende was from Jachimow, now in Czech Republic and from Johanngeorgenstadt, now in Germany.
uranyl nitrate, uranium chloride, uranium tetrafluoride, uranium hexafluoride, uranium dioxide, uranium octaoxide, uranyl acetate, uranyl sulfate, uranyl oxalate, uranium carbide, uranium nitride, uranium sulfide, uranium sulfate, uranium selenide, etc.
Examples:Oxides: uranium dioxide, uranium trioxide, uranium octaoxideSalts: ammonium diuranate, uranyl nitrate, uranyl acetate, uranium hehxafluoride, uranium chlorideand many others because uranium is a reactive metal.
uranyl nitrate, uranium dioxide, uranium octaoxide, uranium hexafluoride, uranyl acetate, uranium tetrachloride, uranium carbide, uranium nitride, uranium tetraiodide, uranium sulfide, ammonium diuranate, etc.
uranyl nitrate, uranium chloride, uranium tetrafluoride, uranium hexafluoride, uranium dioxide, uranium octaoxide, uranyl acetate, uranyl sulfate, uranyl oxalate, uranium carbide, uranium nitride, uranium sulfide, uranium sulfate, uranium selenide, etc.
Some examples of uranium compounds are: uranyl nitrate, uranium dioxide, uranium hexafluoride, uranium tetrachloride, triuraniumoctaoxide, uranyl acetate, uranium iodide, uranium nitride, uranium, sulfide, uranium carbide, uranyl sulfate, etc.
The percentage of uranium in uranium dioxide is 88,149.
Uranium is a chemical element with three natural isotopes (234, 235, 238). The natural uranium has cca. 0,72 % uranium-235; uranium with a concentration of uranium-235 under 0,72 % is called depleted uranium; uranium with a concentration of uranium -235 above 0,72 % is called enriched uranium. Uranium in nuclear power and research reactors is used as metal, aloys, uranium dioxide, uranium carbides, uranium silicides, etc.