Which of the following is the electron configuration for the aluminum ion A) 1s²2s²2p⁶3s² B) 1s²2s²2p⁶3s²3p² C) 1s²2s²2p⁶3s²3p¹ D) 1s²2s²2p⁶ E) 1s²2s²2p⁶3s²3p⁴

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The aluminum ion (Al^3+) has lost three electrons compared to the neutral aluminum atom. The neutral aluminum atom has an electron configuration of [Ne] 3s^2 3p^1. After losing three electrons, the configuration is [Ne], which corresponds to 1s^2 2s^2 2p^6, matching choice D.

Which of the Following Is the Electron Configuration for the Aluminum