Largest in size out of Na^+_, ​Ne and F^-​​

Which have a largest size

F- is the biggest in size. As we know that when we go right in a period atoms become smaller in size because no of orbit is not changing ,no of proton is increasing ,no of electron is increasing so that attraction between protons and electrons will increase so the size will decrease. In F- ,no of electrons is more than no of protons so that protons can`t attract electrons very heavily. In Na+ no of electrons is less than no of protons so that protons will attract electrons more heavily thus its size will decrease. Ne has the same no of electrons and protons. F- Ne Na+ will be the order. And for knowledge these are isoelectronic species in these type of speceis the more negative charge on the atom it will have bigger size