$Z_{\text{eff }}$ for 3d electron of $\mathrm{Zn}=x$

$Z_{\text{eff }}$ for 3d electron of ${\mathrm{Zn}}^{2+}=y$

$Z_{\text{eff }}$ for 4d electron of $\mathrm{Zn}=z$

choose the correct option (s)

Zn electronic configuration is

$\begin{array}{r}1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{10}\\ Z_{\mathrm{eff}}=30-(0.35\times 9)+(1\times 18)\end{array}$

Effective nuclear charge on 3d electron of Zinc is 8.85.

It is same for the  for 3d electron of ${\mathrm{Zn}}^{2+}.<o:p> </o:p><p> </p>$

$x=y>z$