1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Zn, Cd and Hg are not regarded as transition elements. Reason: The electronic configurations of Zn, Cd and Hg are represented by the general formula (n - 1)d10ns2.

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Q. Assertion : $Zn$, $Cd$ and $Hg$ are not regarded as transition elements.
Reason : The electronic configurations of $Zn$, $Cd$ and $Hg$ are represented by the general formula $(n - 1)d^{10}ns^2$.

The d-and f-Block Elements

Solution:

Transition metals are defined as the elements having incompletely filled d orbitals. Since Zn, Cd and Hg have completely filled d orbital, they are not regarded as transition elements.