Question

Screening constant for $3d$ electron in zinc grouping of orbitals is:

Answer 1

Screening constant for $3d$ electron in $Zn$ is given by

$Zn:1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^2$

$\Rightarrow \sigma =\left(0.35\right)\times 9+(1\times 8)+(1\times 8)+(1\times 2)$

$=21.15$