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The ions 'O^(2-), F^-, Na, Mg^(2+)' and ...

The ions 'O^(2-), F^-, Na, Mg^(2+)' and 'Al^(3+)' are isoelectronic. Their radii show:

A

an increase from 'O^(2-)' and 'F^-' and then decreases from 'Na^+' to 'Al^(3+)'

B

a decrease from 'O^(2-)' to 'F^-' and then increase from 'Na^+' to 'Al^(3+)'

C

a significant increase from 'O^2' to 'Al^(3+)'

D

a significant decrease from 'O^(2-)' to 'Al^(3+)'

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The correct Answer is:
D
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