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Aluminum forms an ionic compound with an element to give the formula Al2X3. Which ion below could be X?

Aluminum forms an ionic compound with an element to give the formula Al2X3. Which-example-1
User Filip Hazubski
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1 Answer

11 votes
11 votes

Answer:


S^(2-)

Step-by-step explanation:

Here, we want to know the possible ion with which aluminium forms the hypothetical compound

As we know, aluminium is a metallic compound and thus have a positive ion. The charge on this ion is +3

This is evident from the hypothetical compound

However, we can see that for a compund to be formed, we need an interchanging of ions and that would serve as the subscript

From the hypothetical compound, we can see that the subscript is 2

That automatically means that we need an ion with a -2 charge

Looking at the option, we can see this in S2-

This will serve as the correct choice for X

User Oscar Calderon
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