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निम्न को परमाणु अथवा आयनिक त्रिज्या के ...

निम्न को परमाणु अथवा आयनिक त्रिज्या के बढ़ते क्रम में व्यवस्थित करो।
(a) `Mg^(2+), Na^(+), Al^(3+)` (b) `Fe^(3+), Fe^(2+), Fe^(+)`
(c ) `O^(2-), O^(-) O` (d) `F^(-), O^(2-), Na^(3-)`
(e) `Na^(+), O^(2-), F^(-)` (f) `Li, Na, K, Rb, Cs`

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