How many f block elements are there?

1 Answer
May 20, 2018

Answer:

Well .... there are #"14 lanthanides..."#, cerium, #Z=58#, to lutetium, #Z=71# ...

Explanation:

And....#"14 actinides..."#, thorium, #Z=90#, to lawrencium, #Z=103#...

#"f-element"# chemists often include the Group 3 metals in their research, i.e. scandium, ytrrium, lanthanum, and actinium, because these large, Lewis-acidic metals, have very similar (and stubborn) chemistry....so that makes 32 such metals...