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过渡元素原子电子层结构是长期困扰教学过程的难点．本文用原子轨道能、洪特规则、相对论性效应的概念较好地解释了过渡元素原子“例外”电子层结构
Transition element atomic electron layer structure is long troubled teaching process difficult. In this paper, we use the concept of atomic orbital energy, Hunter rule and relativistic effect to better explain the “exceptional” electronic layer structure of transitional elemental atoms