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《化学通报》编辑部:现对龚伯河同学来信提出的问题,简复如下:核外电子排布的规律有以下三条:一、保里原理——在同一原子中,最多只能有两个电子处在同一轨道上,并且这两个电子的自旋方向相反。二、能量最低原理——电子的排布,在不违背保里原理的条件下,将尽可能地使体系的能量为最低。三、洪特规律——在等价轨道上排布的电子将尽可能分占在不同的轨道上,且自旋方向相同。等价轨道是指在一个原子中间同一亚层所包括的各轨道,如
The editorial department of Chemical Bulletin: The questions raised by students from Gong Beihe are summarized as follows: There are three rules for the arrangement of electrons outside the nuclear: 1. Principle of Pauli - In the same atom, there are only up to two electrons In the same orbit, and the two electrons spin in the opposite direction. Second, the principle of the lowest energy - the arrangement of electrons, without violating the principle of Paul in the conditions, the system will be as low as possible to the energy. Third, Hunt law - arranged in the equivalent orbit of electrons will be as much as possible share in different orbits, and spin in the same direction. Equivalent orbit refers to the same sub-layer in the middle of an atom included in each track, such as