\(F ^{-1}\) would have a larger radius than fluorine atom, because of _____________
A. Addition of an extra electron in \(F ^{-1}\) B. The ion was obtained after fluorine lost valence electron C. The effective nuclear charge of \(F ^{-1}\) is greater than that of \(F ^{-1}\) D. \(F\) is an ion while \(F\) is not.
Correct Answer: A
Explanation
The ionic radii of negative ions are greater than the corresponding atomic radii, this is because a negative ion is formed by adding electron to the outermost shell, thus making it bigger