In what period do the elements in the lanthanide series belong?

1 Answer
Feb 20, 2017

Answer:

Their own special ones.......

Explanation:

Lanthanides and actinides are always assigned their own special Periods in the Periodic Table. Many inorganic chemists refer to them as the #"f-element metals"#. Because, #"scandium,"# #"ytrrium,"# and #"lanthanum"# have very similar chemistry, their chemistry is often considered under the same umbrella.