The outermost electron is shielded from the nucleus.

原子核对最外层电子的作用受到屏蔽。

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So, taking just the outermost electron might give us some false readings.

所以只取离中心最远的那个电子的电离能,可能会使我们的认识发生偏差。

麻省理工公开课 - 固态化学导论课程节选

"The Rydberg electron resembles a sheepdog that keeps its flock together by roaming speedily to the outermost periphery of the flock, and nudging back towards the centre any member that might begin to drift away, " said Professor Greene.

BBC: World first for strange molecule