Which of the following is the electron configuration for

Last updated: 7/28/2022

Which of the following is the electron configuration for aluminum in the ground state? (The numbers after the letters are meant to be superscript) 1s2 2s2 2p5 3s1 3p1 1s2 2s2 2p6 3s2 3p1 1s2 2s2 2p6 3s1 3p2 1s2 2s2 2p6 3s1 3p1 1s2 2s2 2p6