我们已经有2个状态在这里，3个在这里，2个在这里，我需要4个，如果我能想到这些键，四个，通过洪特规则，我们就能像这样排布。
I 've got two states here , three states here , two here , I need four , and if I can come up with these bonds , four , by the Hund rule I 'd fill them like this .
关于洪特规则解释的讨论
Discussion on the Interpretation of the Hunds Rules
洪特规则