[1]H氢1s1  [2]He氦1s2  [3]Li锂1s2 2s1 [4]Be铍1s2 2s2 [5]B硼1s2 2s22p1  [6]C碳1s2 2s22p2  [7]N氮1s2 2s22p3  [8]O氧1s...