Dear Student,

The elements in groups 3–12 as shown in the schematic periodic table are defined as the so-called d-block metals. The term transition metal is also often used to describe this group of elements.

The elements which have partially filled d-orbitals either in ground state or in one or more of their ions, are called d-block elements or outer transition elements.

Their properties are intermediate between s-block elements and p-block elements. They are more electropositive than p-block elements but less electropositive than s-block elements.

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