This comprehensive guide to the element erbium provides an in-depth look at its properties, uses, and history. Learn about the atomic structure of erbium, its place in the periodic table, and its physical and chemical characteristics. Discover how er
From Wikipedia
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.