The Rare earth elements are the fifteen chemical elements in the lanthanide series (atomic numbers 57 to 71) together with scandium (21) and yttrium (39).[1]
Element | Symbol | Atomic number |
---|---|---|
Scandium | Sc | 21 |
Yttrium | Y | 39 |
Lanthanum | La | 57 |
Cerium | Ce | 58 |
Praseodymium | Pr | 59 |
Neodymium | Nd | 60 |
Promethium | Pm | 61 |
Samarium | Sm | 62 |
Europium | Eu | 63 |
Gadolinium | Gd | 64 |
Terbium | Tb | 65 |
Dysprosium | Dy | 66 |
Holmium | Ho | 67 |
Erbium | Er | 68 |
Thulium | Tm | 69 |
Ytterbium | Yb | 70 |
Lutetium | Lu | 71 |