Do the Lanthanides and Actinides share the same kind of analagous traits that Groups generally share?

Question

I understand that generally they have analogies with Scandium and Yttrium--but how about with each other--and within the Long Series themselves, are there ordinal analogies--for example are there analogies specifically between, say, Promethium and Neptunium or, say Cerium and Thorium--that other, ordinally different Long Series elements might not share? Or are there such intra-Long Series analogies where the kossel shell counts are also more analagous?

Answer 1

they all have the same # of valence e-, therefore they have similar chemical properties.