How many elements make up the lanthanide series?

1 Answer
Jan 9, 2017

Well, there are 14 lanthanides, and 14 actinides.............


But some of the heavier metals are not even available in milligram quantitites. In addition, the chemistry of the Group 3 metals, which are hard, large, Lewis acids, is also lumped together with that of the lanthanides.