Which is more stable?

{A l}^{3 +}

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A l

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Both are equally stable

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Can't say

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Solution

The correct option is A ${A l}^{3 +}$
Aluminium has 3 electrons in its outermost shell, so it donates 3 electrons to attain the octet configuration forming ${A l}^{3 +}$ ion which is more stable than $A l$ .

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