[7s]-[7s]-[7s]-[7s]- [4p]-[4p]-[4p]-[4p]- [6c]---- 6-8-4-4- [wf]-[0s]-[8p]-[6i]- [6p] f f s f s f f s f g s s s f d s a f s a a a s [6i]--[8a]--- s o f f a a a f [2z] 8 8-8-- [8a]---s- a780w0864-- [7s] [0p] [7p] [0o] [8f] [6a] [3p] [8o] s f g a g g d a a s f f f s a f [6f] g h f a f f f g-h-h-- 8--f s f f [5s] d d g d a d d [5f] g f d a a f f [7s] [8d] [8d] [7s] [6a] [6s] [6a] [5s] [4g] - [5h] -[2g] - [2g]-[5i][8a][0d] [4h]-[6d] [4p] [6h]--f-- h--s i s i [4s] s o o---- [6s] [7f] [7f] s s d f s s s d d [5s] p [7p] a [7s] f [6f] h [6f] d [7d] p [6a] d [6f]- [6f] s [7p] s [6s] d [6s] p 6-7---- w-e-a- s---o a-a a d- f--- g--j-- f-f- s-g-a- f--f- s p p a s f f h