Question

Statement - I: $Cd$ is a transition element.
Statement - II: $Cd$ and $C{d}^{2+}$ both have completely filled $d-$ orbitals in their ground state.

• A. Statement - I is true; Statement - II is true; Statement - II is correct explanation for Statement - I
• B. Statement - I is true; Statement - II is true; Statement - II is NOT the correct explanation for Statement - I
• C. Statement - I is true; Statement - II is false
• D. Statement - I is false; Statement - II is true

Answer 1

The correct option is D

Statement - I is false; Statement - II is true

$Cd$ is a $d-$ block element, not a transition element as its d - orbital is filled completely in $Cd$ and $C{d}^{2+}$ both.
$Cd\to 3d^{10}4s^2,C{d}^{2+}\to 3d^{10}4s^0$