Answer
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Step 1: Recall that metal ions form when a metal loses electrons to achieve a stable electron configuration.
In the case of aluminum, which is in the third energy level (or third period) of the periodic table, it needs to lose three electrons to reach the stable electron configuration of neon, which is in the second energy level.
Step 2: Write out the electron configuration for aluminum in its neutral state:
\text{Al} = 1s^2 2s^2 2p^6 3s^2 3p^1
Final Answer
The name of the aluminum ion is aluminum(III) or aluminum ion, denoted as Al³⁺.
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