Question

What are Rare Earth or Inner transition elements

Answer 1

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They are elements which present on the periodic table.They also consists of lanthinides and actinides.Because of their placement in the periodic tabledue to their electronic configuration.

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Answer 2

The inner transition elements occupy a position in between the elements lanthanum (Z=57) and hafnium (Z=72), and between actinium (Z=89) and rutherfordium (Z=104). Elements 58-71, which follow lanthanum, are the lanthanides, and elements 90-103, which follow actinium, are the actinides.

The inner transition elements are sometimes called the f-block elements, since in this region the f-orbitals are being filled in.