The inner transition elements include the actinides and the lanthanides.

Name: The inner transition elements include the actinides and the lanthanides.
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The statement is true. The inner transition elements, also known as the f-block elements, include the lanthanides (atomic numbers 57-71) and the actinides (atomic numbers 89-103). They are called inner transition elements because their valence electrons are in the f orbitals, which are located in the innermost part of the periodic table.

The Inner Transition Elements Include the Actinides and the Lanthanides