Which of the following elements are generally excluded from being classified as typical transition e — d and f Block Elements Chemistry Question

💡 Solution & Explanation

A transition element is defined as one which has incompletely filled $d$ -orbitals in its ground state or in its most common oxidation state. $Zn$ ($3d^{10}4s^2$), $Cd$ ($4d^{10}5s^2$), and $Hg$ ($5d^{10}6s^2$) have fully filled $d$ -orbitals in their ground states as well as in their $+2$ oxidation states. Therefore, they are not typical transition elements.