Question

Atomic number of Mg and Al are 12 and 13, respectively. Write down their electronic configuration.

Answer 1

Mg=(Ne)3s*2.
Al=(Ne)3s*2 3p*1.
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Answer 2

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       Magnesium

              1s²2s²2p⁶3s²

        Aluminum

               1s²2s²2p⁶3s³

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