Oxidation Number of Erbium

Erbium is a silvery white metal with the symbol Er and atomic number 68. It is one of the rarest earth metal, which can be extracted from the heavier rare earth minerals. The positive oxidation state of erbium is 3. It is easily malleable compound with the relative atomic mass of 167.259. It has been used as photographic filter, colorant for the glasses and the erbium salts is used to stimulate the metabolism.

Erbium is a silvery white metal with the symbol Er and atomic number 68. It is one of the rarest earth metal, which can be extracted from the heavier rare earth minerals. The positive oxidation state of erbium is 3. It is easily malleable compound with the relative atomic mass of 167.259. It has been used as photographic filter, colorant for the glasses and the erbium salts is used to stimulate the metabolism.


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