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0 in the elemental form and +2 in its compounds
Krypton is a gas, minor component of the atmosphere; krypton hasn't ores. Some compounds of krypton are: KrF2, KrXe, Kr(OTeF5)2, HKrCN, HKrHC2, etc.
It simply means removing sulphur from. Sulphur is a very common element and its compounds are found in many minerals and ores.
1. Einsteinium is a man made chemical element, without ores. 2. Some compounds of einsteinium are: Es2O3, EsF3, EsCl3, EsBr3, EsI3, EsF2, EsCl2, EsI2, EsBr2, EsOCl, EsOBr, EsOI, Es(NO3)3, some organo-metallic compounds, etc.
NO!!! It does not occur naturally. However, its mineral ores are very common. e.g. Haematite, Magnetite.
Uranium and zirconium ores
Metal ores are metallic elements found in compounds with other elements in nature. These ores are then separated to produce pure metals.
I don't know!;p
There are only 2 Tin ores - Cassiterite and Stannite.
Tin is a solid when mined. However the solid is not tin, but a tin ore (one or more tin compounds) and the tin will have to be separated. The most common compounds in tin ores are tin oxides and sulfides.
Ionic compounds can be easily found in salts (and in mineral ores when it comes to industrial level).
Calaverite , Sylanite ,Nagyagite , Petzite , Krennerite are some of the ores of gold but i don't know how about common ores of gold