The order of increasing atomic size is:

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Question

(A) Atomic size generally increases down a group in the periodic table because the number of electron shells increases.Fluorine $(F)$,Chlorine $(Cl)$,

Vedclass · Accepted Answer

$F < Cl < Br < I$

Vedclass · Answer

(A) Atomic size generally increases down a group in the periodic table because the number of electron shells increases.Fluorine $(F)$,Chlorine $(Cl)$,Bromine $(Br)$,and Iodine $(I)$ all belong to Group $17$ (Halogens).The order of these elements down the group is $F, Cl, Br, I$.Therefore,the atomic size increases in the order: $F Since the question asks for the order of increasing atomic size,the correct sequence is $F < Cl < Br < I$.

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