Question

Which one is the descending order of atomic radius of elements of third period.
Na (Z = 11), Mg (Z = 12), Al (Z = 13), Si (Z = 14)?
(A) Si > Al > Mg > Na
(B) Na > Mg > Al > Si
(C) Na < Mg < Al < Si
(D) Na > Al > Mg > Si

Answer 1

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➡️Correct Option -: B✔️✔️✔️

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