Which of the following is the incorrect match for the position of element in periodic table?

$$\begin{gathered} \left(\mathrm{i}\right) \left[\mathrm{Ar}\right]3{\mathrm{d}}^{5}4{\mathrm{s}}^1\to \mathrm{Cr}\left(24\right)\to 4^{\text{th }}\mathrm{period}, 6\mathrm{th} \mathrm{group} \\ \left(\mathrm{ii}\right) \left[\mathrm{Kr}\right]4{\mathrm{d}}^{10}\to \mathrm{Pd}\left(46\right)\to 5^{\text{th }} \mathrm{period}, 12\mathrm{th} \mathrm{group} \\ \left(\mathrm{iii}\right) \left[\mathrm{Rn}\right]6{\mathrm{d}}^{2}7{\mathrm{s}}^2\to \mathrm{Th}\left(90\right)\to 7^{\text{th }}\mathrm{period}, 3\mathrm{rd} \mathrm{group} \\ \left(\mathrm{iv}\right) \left[\mathrm{Xe}\right]4{\mathrm{f}}^{14}5{\mathrm{d}}^{2}6{\mathrm{s}}^2\to \mathrm{Hf}\left(72\right)\to 6^{\text{th }}\mathrm{period}, 4\mathrm{th} \mathrm{group} \end{gathered}$$