在原子、分子结构的教学中,电子如何通过节面的问题常使学生感到困惑,为此先后有人提出了几种不同观点的阐述,以期解惑并给予学生以正确的物理图象,如从相对论量子力学出发,得到的几率分布不复出现节面;电子自身占有一定体积,从而在节点(面)附近的小体积中几率虽小但不为零;从密度函数作Taylor展开进行几率计算得到不为零的值。 In the teaching of atom and molecular structure, students often feel confused by the problem of nodal surface, for which some people have put forward some explanations of different views in order to solve and give students the correct physical image, According to the relativistic quantum mechanics, there is no recurrence of probability distribution. The electrons occupy a certain volume, so the probability is small but not zero in the small volume near the node (surface). The probability is calculated from the density function for Taylor expansion Non-zero value.