Which is a bigger ion among Na^(+), F^(-), O^(2-) and Mg^(2+)? Why?

1.	Which is a bigger ion among Na^(+), F^(-), O^(2-) and Mg^(2+)? Why?
Answer» SOLUTION :`O^(2-)` is BIGGER ion AMONG the given four. Among isoelectronic IONS, the more the negative CHARGE on the ion, the more its size. The order is `O^(2-) gt F^(-) gt Na^(+) gt Mg^(2+)`

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