Multiple choice Which of the following is the correct electronic representation of aluminium? 1s2 2s2 2p2 3s2 3p1 1s2 2s2 3p6 3s2 2p1 1s2 2s2 2p6 3p2 3s1 1s2 2s2 2p3 3s2 3p4 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Electronic representation of aluminium 1s2 2s2 2p6 3s2 3p1.