transition elements

These are the elements which have incomplete d-subshell.

these are elements in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table,including f-block also i.e lanthanides and actinides.

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Transition elements are those elements which have incompletely filled d-orbitals in the ground state or in anyone of their oxidation state.for example copper silver gold transition metals because in their commonly oxidation states they have incompletely filled d-subshell.

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the elements which are of d block are called transition elements. they show variable valency.

d block elements with incomplete orbit are transition elements