The d-block elements exhibit variable oxidation states. The serveral different oxidation states shown by the d-block elements is related to their

Options

A. electronic configurations
B. electropositive characters
C. atomic masses
D. atomic sizes

Answer

A

Explanation

The d-block elements exhibit a wide range of oxidation states differing usually by units of one. This is due to the fact that their (n-1) d electrons get involved along with their ns electrons in bonding.