It is the naturally occuring element with the highest atomic number (92). It is also radioactive.
Uranium is not used to make knives !
Uranium has an extensive chemistry- its quite reactive and forms many very interesting compounds.
Nothing interesting !
I believe it is Uranium. All elements heavier than uranium are man-made. Here's an interesting article... http://space.newscientist.com/article/dn13828-has-the-heaviest-element-been-found.html
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.
Cold uranium is unirradiated uranium.