u [6p] u p [6s] p s [6f] s [6g] [6f] s p [3a] O [3s] [3a] O u [6p] t s [3a]- u [6p] u p [6s] p s [6f] s [6g] [6f] s p [3a] O [3s] [3a] O u [6p] t [0O] [6p]- u [6p] u p [6s] p s [6f] s [6g] [6f] s p [3a] O [3s] [3a] O u [6p] t s [3a]- u [6p] u p [6s] p s [6f] s [6g] [6f] s p [3a] O [3s] [3a] O u [6p] t [0O] [6p]- 1 [4s] 1 4 [6s] 4 6 [8p] 6 [9p] [8p] 6 4 [5s] 3 [6s] [5s] 3 1-[4s] s [1p] i [5o]----1 [4s] 1 4 [6s] 4 6 [8p] 6 [9p] [8p] 6 4 [5s] 3 [6s] [5s] 3 1-[4s] 1 [3o] [4i]---- u [6p] u p [6s] p s [6f] s [6g] [6f] s p [3a] O [3s] [3a] O u [6p] t s [3a]-u [6p] u p [6s] p s [6f] s [6g] [6f] s p [3a] O [3s] [3a] O u [6p] t [0O] [6p]