The correct order of radii is

1.	The correct order of radii is
Answer» `Al^(3+) gt Mg^(2+) gt NA^(+) gt F^(-) gt O^(2-)` `Na^(+) gt Mg^(2+) gt Al^(3+) gt O^(2-) gt F^(-)` `Na^(+) gt F^(-) gt Mg^(2+) gt O^(2-) gt Al^(3+)` `O^(2-) gt F^(-) gt Na^(+) gt Mg^(2+) gt Al^(3+)` ANSWER :D

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