GC: n CT: Neodymium is considered a rare earth element because it is one of the 15 lanthanide elements that form the core of the rare earth element group. With atomic number 60, neodymium sits between praseodymium (59) and samarium (62) in the lanthanide series. Neodymium is considered a critical

GC: pln CT: The rare earth elements (REE) are a set of seventeen metallic elements. These include the fifteen lanthanides on the periodic table plus scandium and yttrium. Rare earth elements are an essential part of many high-tech devices. The U.S. Geological Survey news release “Going Critical” explains: “Rare-earth elements (REE) are necessary components of more than