Question

The correct order of raaii of F, F^-, O and O^2- is ______.

Options

• \[\ce{O^{2-} > F^- > F > O}\]

• \[\ce{F^{-} > O^{2-} > F > O}\]

• \[\ce{O^{2-} > O > F- > F}\]

• \[\ce{O^{2-} > F^- > O > F}\]

Answer 1

The correct order of raaii of F, F^-, O and O^2- is \[\underline{\ce{O^{2-} > F^- > O > F}}\].

Explanation:

The anion is bigger than its parent atom in size. Additionally, size decreases as nuclear charge increases.