Question

Choose the corect order of atomic radii of fluorine and neon (in pm ) out of the options given below and justify your answer.
(a) 72, 160 (b) 160, 160 (c) 72, 7 (d) 160, 72

Answer 1

The atomic radius of F is expressed in terms of covalent radius while the atomic radius of neon is usually expressed in terms of van der Wassis' radius, van der Walls, the radius of an element is always larger than its covalent radius.
Therefore the atomic radius of F is smaller than the atomic radius of
Ne

Answer: (a). F = 72 pm , Ne = 160 pm