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| 1. |
The ions `O^(-2),F^(-),Mg^(2+) and Al^(3+)` are isoelectronic. Their ionic radii showA. a decrease from `O^(2-)` to `F^(-)` and then increase from `Na^(+)` to `Al^(3+)`B. a significant increase from `O^(2-)` to `Al^(3+)`C. a significant decrease from `O^(2-)` to `Al^(3+)`D. an increase from `O^(2-)` to `F^(-)` and then decrease from `Na^(+)` to `Al^(3+)` |
| Answer» Correct Answer - C | |