Question

write the complete ground - state electron configuration of ap. for multi - digit superscripts or coefficients, use each number in succession

Explanation:

Step1: Determine the atomic number of Al

The atomic number of Al (aluminum) is 13.

Step2: Write the electron configuration for Al

The electron configuration of Al is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}\).

Step3: Consider the \(Al^{3+}\) ion

\(Al^{3+}\) has lost 3 electrons. So we remove 3 electrons from the outermost shell. Removing 3 electrons (2 from 3s and 1 from 3p), we get the electron configuration of \(Al^{3+}\) as \(1s^{2}2s^{2}2p^{6}\).

Answer:

\(1s^{2}2s^{2}2p^{6}\)