Question

Element having maximum number of low shielding electrons :-

• A. $\left[Xe\right]{4f}^{14},{5d}^{10},{6s}^2,{6p}^2$
• B. $\left[Rn\right]{5f}^{14},{6d}^1,{7s}^2$
• C. $\left[Ar\right]{3d}^{10},{4s}^2$
• D. $\left[Ne\right]{3s}^2,{3p}^1$

Answer 1

The correct option is A $\left[Xe\right]{4f}^{14},{5d}^{10},{6s}^2,{6p}^2$

Low shielding effect are shown by d-orbital and f-orbital electron

Option $A$ has maximum number of $d$ and $f$ orbital electron so $A$ is correct ans it has $24v$ low shielding electron.