1) The set representing the right order of ionic radius is A) $Li^{+} > Na^{+} > Mg^{2+} > Be ^{2+}$ B) $Mg^{2+} > Be^{2+} > Li^{+} > Na ^{+}$ C) $Na^{+} > Mg^{2+} > Li^{+} > Be ^{2+}$ D) $Na^{+} > Li^{+} > Mg^{2+} > Be ^{2+}$ Answer: Option DExplanation:As the charge on cation increases size decreases and down the group increases
