Arrange the following elements in increasing order of their atomic radii.
(a) Li, Be, F, N
(b) Cl, At, Br I

AcademicChemistryNCERTClass 10

(a) F < N < Be < Li
These elements are in the same period and atomic radii decrease from left to right, so the increasing order of their atomic radii is:  F, N, Be, Li 

(b) CI < Br < I < At 
These elements are in the same group and atomic radii increase from top to bottom, so the increasing order of their atomic radii is:  Cl, Br, I, At.
raja
Updated on 10-Oct-2022 13:28:23

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