Two metals A and B having similar ionic radii | vedclass

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(A) $Li^{+}$ (group-$1$) and $Mg^{2+}$ (group-$2$) exhibit a diagonal relationship in the periodic table,resulting in similar ionic radii.Both $Li$ an

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$Li$ and $Mg$

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(A) $Li^{+}$ (group-$1$) and $Mg^{2+}$ (group-$2$) exhibit a diagonal relationship in the periodic table,resulting in similar ionic radii.Both $Li$ and $Mg$ react with oxygen to form only monoxides ($Li_2O$ and $MgO$ respectively) and react directly with nitrogen to form nitrides ($Li_3N$ and $Mg_3N_2$ respectively).Therefore,the metals $A$ and $B$ are $Li$ and $Mg$.

Two metals $A$ and $B$ having similar ionic radii,react with oxygen to give only monoxides and react with nitrogen to give nitrides. Then,$A$ and $B$ respectively are

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