d d d [6d] ss6s-[6s] sd6 sd 8 fd8 sp8p-[8d] dd 2 ss2s-[2s] sd2 sa 3 aa3p-[3a]-s3 a [6s]a s6 p 6 p [6p] p [8s]a s8 a 8 a [8a] a [2s] s [2s] p 2 p [2p] p [3s]a s3 a 3 d [3d] d [6d] dd6 f 6 d [6d] d [8d] fd8 s 8 d [8d] d [2d] df2 p 2 p [2p] p [3p] up3 p 3-3- [4i] f [4d] s [4d] f [4d] s 5 f [5d] s [5d] f [5d] s 6 f [6d] s [6d] f [6d] s 3 f [3d] s [3d] f [3d] s 4 dd[4d] d [4d] s [4f] p 5 d [5d] d [5d] s [5f] p 6 p [6p] p [6p] pp6sp 3 O [3O] O [3O] OO3Op---- p p [4f] ff4-4-[4o]p- [5p] po5p s5 p [5p] p [6p] po6p s6 p [6p] a [3s]a p3O p3-[3p] p [4f] ff4-4-[4o]p- [5p] po5p s5 p [5p] p [6p] po6p s6 p [6p] a [3s]a p3O p3-3- 4 f [4d] s [4d] f [4d] s 5 p [5p] p [5o] oo5ou 6 f [6d] s [6d] f [6d] s [3p] pp3 p [3O] O [3O] p