Question

which of the following is the biggest ion?

(a)Al^3+
(b) Ba^2+
(c) Mg^2+
(d) Na^+
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Answer 1

Answer:

Now..We Know..As The Number of electrons Decrease...The Net Positive nuclear charge Dominates..and The electron cloud becomes Smallwr and Smaller due To electrostatic Attraction and interaction...So Thus Al^3+ will be The smallest among all The Given option...since it has Lost 3 electrons..While Na^+ will be The largest...

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