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Erbium is a chemical element; it has symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. It is a lanthanide, a rare-earth element, originally found in the gadolinite mine in Ytterby, Sweden, which is the source of the element's name.
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Naturally occurring erbium (68 Er) is composed of six stable isotopes, with 166 Er being the most abundant (33.503% natural abundance).Thirty-nine radioisotopes have been characterized with between 74 and 112 neutrons, or 142 to 180 nucleons, with the most stable being 169 Er with a half-life of 9.4 days, 172 Er with a half-life of 49.3 hours, 160 Er with a half-life of 28.58 hours, 165 Er ...
Erbium compounds are compounds containing the element erbium (Er). These compounds are usually dominated by erbium in the +3 oxidation state, although the +2, +1 and 0 [ 1 ] oxidation states have also been reported.
Erbium iodate can be obtained by reacting erbium periodate and periodic acid in water at 160 °C. The reaction will produce anhydrous and dihydrate crystals. The reaction will produce anhydrous and dihydrate crystals.
Erbium hexaboride (ErB 6) is a rare-earth hexaboride compound containing the element erbium, which has a calcium hexaboride crystal structure. It is one of the fundamental compounds formed in reactions between erbium and boron .