Scandium(SC), Yttrium(Y), Lanthanum(La), Cerium (Ce), Praseodymium(Pr),Neodymium (Nd), Promethium(Pr), Samarium(Sm), Europium(Eu), Gadolinium(Gd), Terbium(Tb); Dysprosium(Dy), Holmium(Ho), Erbium(Er), Thulium(Tm), Itterbium(Yb), Lutecium(Lu), Tantalum(Ta)
