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physical object > natural object > particle > element > column grouped element > transition metal > inner transition metal
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inner transition metal comparison table
Subject has atomic number has synonym has filling orbital has definition
actinide89 to 103atom5fElement with atomic number between 89 (Actinium) and 103
rare Earth lanthanide4fElement with atomic number between 57 and 71 in the top row of the inner-transition elements of the periodic table

Next transition metaliridium    Uptransition metal    Previous transition metalhafnium