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学习苏教版高中化学选修3——《物质结构与性质》这本书的专题1时,会讲到原子核外电子的排布原理:①能量最低原理:电子先占据能量低的轨道,再依次进入能量高的轨道;②泡利不相容原理:每个轨道最多容纳两个自旋状态不同的电子;③洪特规则:在能量相同的轨道上排布时,电子尽可能分占不同的轨道,且自旋状态相同.学生在学习能量最低原理时,就必须按照书上13页的图(如图1所示),记住各个轨道能量的高低.
Learning Sujiao version of high school chemistry elective 3 - “material structure and nature of” the topic of this book 1:00, it will speak of atomic arrangement of electrons outside the principle: ① the principle of the lowest energy: electronic first occupy the low energy orbit, and then Into the high-energy orbit; ② Pauli incompatible principle: each track can accommodate up to two different spin state of the electron; ③ Hunter rule: the energy of the same orbital arrangement, the electronic share as different as possible Orbit, and spin the same state.Students learn the principle of the lowest energy, you must follow the book on the map of 13 (Figure 1), remember the level of energy of each track.