JEE Main Chemistry question

Atomic radii of F and Ne, in Å, are given by [BCECE 2006]

(A)0.72, 0.71
(B)0.72, 1.6Correct
(C)1.6, 1.58
(D)0.71, 0.72

Answer: (B)

Solution

Atomic radius decreases across a period, so fluorine (covalent radius ≈ 0.72 Å) is smaller than earlier period-2 elements. Neon, being monatomic, has no covalent bond from which to measure a covalent radius; its

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Question ID VK-133110