Questions

$Z_{eff}$ for 3d electron of $Zn = x$
$Z_{eff}$ for 3d electron of ${Zn}^{2 +} = y$
$Z_{eff}$ for 4d electron of $Zn = z$
choose the correct option (s)

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x > z

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detailed solution

Correct option is D

Zn electronic configuration is

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

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

It is same for the for 3d electron of ${Zn}^{2 +} .$

$x = y > z$

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Zeff for 3d electron of Zn=xZeff for 3d electron of Zn2+=yZeff for 4d electron of Zn=zchoose the correct option (s)