Question

neon bigger then flouride

Answer 1

as we know that ATOMIC NUMBER of Ne is10 and 
ATOMIC NUMBER of F is 9
FLOURIDE means F^-
so as the number of elctrons in flouride is 10,but the no. of protons are 9 and no.of electroms are10.sothe attractive forces between nucleus and valency electrons decreases .
hence the size is bigger than neon

Answer 2

NEON IS BIGGER THAN FLOURIDE  BECAUSE NEON IS NOBLE GAS .IT HAS ATOMIC NO.IS 10 AND FLOURIDE ATOMIC NO.IS 9