http://resource.geosciml.org/classifier/cgi/commodity-code/europium
definition | Europium is a chemical element with the symbol Eu and atomic number 63. It is named after the continent Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water. | ![]() |
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source | http://en.wikipedia.org/wiki/Europium | ![]() |
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in scheme | commodity code | |||||
is primary topic of | europium |