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在一些教科书中,论述原子基态核外电子排布,往往是将Z个电子在不违背保里原理的前提下尽可能填入能量低的轨道,一般是按n+0.7l规则来判断各轨道能量的高低顺序。这样,从氢原子开始逐个增加核电荷,同时逐个地把电子按上述顺序“填充”到轨道上,于是就建造起周期表上全部元素的原子基态的核外电子排布,这虽然可帮助学生按原子序数写出周期表上大部分元素原子的能量最低的组态,但对于过渡元素及La系、Ac系元素来说,这种“填充”顺序与实验事实是有矛盾的。另外,原子的核外电
In some textbooks, discussing the arrangement of extranuclear electrons in the ground state of an atom is often to fill the low-energy orbitals of the Z electrons as far as possible without violating Pauli’s principle, and generally determine the orbital The order of energy. Thus, increasing nuclear charges one by one from the hydrogen atom and “filling” the electrons one by one in the above order to the orbit, thus creating an extranuclear electron arrangement of the atomic ground states of all the elements of the periodic table, which, though, The lowest energetic configuration for most elements of the periodic table is written in terms of atomic numbers, but this order of “stuffing” contradicts the experimental facts for the transitional elements La and Ac. In addition, atomic nuclear power