Answers

2015-11-17T18:32:05+05:30
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

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2015-11-17T19:04:44+05:30
NEON IS BIGGER THAN FLOURIDE  BECAUSE NEON IS NOBLE GAS .IT HAS ATOMIC NO.IS 10 AND FLOURIDE ATOMIC NO.IS 9 
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PLZ MARK BRAinlest
thats a wrong  reason
FLOURIDEs at. no. is not 9 thats 10 because thats a ion