Which of the following orders of atomic radiu | vedclass

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(A) The atomic radius increases down a group due to the addition of new shells. However,for $4d$ and $5d$ transition series elements,the atomic radii

Vedclass · Accepted Answer

$Sc < Y \approx La$

Vedclass · Answer

(A) The atomic radius increases down a group due to the addition of new shells. However,for $4d$ and $5d$ transition series elements,the atomic radii are very similar due to the lanthanoid contraction. $1$. For $Sc$,$Y$,and $La$ (Group $3$): $Sc $2$. For $K$,$Rb$,and $Cs$ (Group $1$): The radius increases as $K $3$. For $Ge$,$Sn$,and $Pb$ (Group $14$): The radius increases as $Ge $4$. For $Ni$,$Pd$,and $Pt$ (Group $10$): $Ni Since both $A$ and $D$ represent correct trends,$A$ is the most standard representation for the group $3$ elements.

Which of the following orders of atomic radius is correct?

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