WHICH OF THE FOLLOWING ORDERS OF IONIC RADII IS CORRECTLY REPRESENTED
1.F- > O2- >Na+
2.Al3+ > Mg2+ > N3-
3.H > H+ > H -
4.Na+ > F- > O2-

sir i know you had given the ans but the correct ans is 3. i want explanation.
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PLEASE GIVE ME THE EXPLANATION.
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