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Q.

Atomic radii of fluorine and neon in angstrom units are respectively

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a

0.72, 1.62

b

0.72, 0.72

c

1.2, 1.2

d

1.62, 0.72

answer is A.

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Detailed Solution

Florine has 5 electrons in a 2p orbital which is less than what is required for an ideal inert gas configuration. Which makes the nuclear charge high leading smaller size than the next inert gas neon.

Hence atomic radii of fluorine and neon are 0.72  and 1.62 Ao.

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