DefinitionAn <ERBIUM> is an <Atom> and a <CHEMICAL ELEMENT> in the lanthanide series, with symbol Er and atomic number 68. It belongs to the lanthanide series
Rare earth metal of the yttrium group. Dark-gray metallic powder. Hexagonal close packed crystal lattice. Standard state: solid Colour: silvery white Discoverer: Carl Mosander Date discovered: 1842 Discovered at: Sw
