The fifteen elements with atomic numbers 57 to 71, which includes Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Europium (Eu), Erbium (Er), Thulium (Tm), Ytterbium (Yb) and Lutetium (Lu), are known as what?
Lanthanides series Lanthanide series Lanthanoid series elements Lanthanide Lanthanoid Lanthanides Lanthanide Series Lanthanoid series Lanthanide metal Lanthanon Lanthanoids
lanthanoid series elements lanthanoid lanthanide series lanthanon lanthanides series lanthanides lanthanide lanthanoid series lanthanide metal lanthanoids
lanthanoid series
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Lanthanoid series