Question

what is the most common ion charge for aluminum? +1 +3 -3 -1

Explanation:

Aluminum has an atomic number of 13. Its electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}\). To achieve a stable electron configuration (similar to the noble gas neon, \(1s^{2}2s^{2}2p^{6}\)), it loses 3 electrons. Losing electrons gives a positive charge. The number of electrons lost determines the ion charge.

Answer:

+3