Question 36
Arrange the following elements in increasing order of their atomic radii.

(a) Li, Be, F, N
(b) Cl, At, Br, I

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Solution

(a) Atomic radius decreases across a period. So, increasing order of atomic radii is: F < N < Be < Li.

(b) Atomic radius increases down the group. So, increasing order of atomic radii is: Cl < Br <I < At.

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Question 36 Arrange the following elements in increasing order of their atomic radii. (a) Li, Be, F, N (b) Cl, At, Br, I

(a) Atomic radius decreases across a period. So, increasing order of atomic radii is: F < N < Be < Li. (b) Atomic radius increases down the group. So, increasing order of atomic radii is: Cl < Br <I < At.

Question 36
Arrange the following elements in increasing order of their atomic radii.

(a) Li, Be, F, N
(b) Cl, At, Br, I

(a) Atomic radius decreases across a period. So, increasing order of atomic radii is: F < N < Be < Li.

(b) Atomic radius increases down the group. So, increasing order of atomic radii is: Cl < Br <I < At.