RE: tecx22 May 2019 00:24
try pronouncing them...lo!
The 17 rare earth metals, by name and atomic weight, are scandium (21), yttrium (39), lanthanum (57), cerium (58), praseodymium (59), neodymium (60), promethium (61), samarium (62), europium (63), gadolinium (64), terbium (65), dysprosium (66), holmium (67), erbium (68), thulium (69), ytterbium (70), and lutetium (71).