Which of the following specieswill have the largest and smallest size

1.	Which of the following specieswill have the largest and smallest size Mg,Mg^(2+),Al,Al^(3+)?Give reason.
Answer» Solution : The largest SPECIES is Mg The smallest species is `Al^(3+)`Reason : Atomic RADII DECREASES across a period. Cations are smaller thantheir parent atoms. Among the ISOELECTRONIC ions , the greater the charge on the cation smaller will be the radius.

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