Which list of elements is arranged in order of increasing atomic radii?
(1) li, be, b, c (3) sc, ti, v, cr(2) sr, ca, mg, be (4) f, cl, br, i

The lost of element arranged in order of increasing Atomic radii is 4) F, CI, Br, I.

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

The answer for this is a