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在苏教版选修3“物质结构与性质”中“分子间作用力分子晶体”这节课教学过程中,学生对分子间作用力(包括范德华力和氢键)的形成原因,及对晶体性质的影响有很多疑问,经过查阅资料谈了我的一些办法,对这部分的学习和教学有一定的帮助.一、范德华力范德华力是指分子之间的作用力,又称范德华力,按作用力产生的原因和特征可分为三部分:取向力、诱导力、和色散力.1.取向力.极性分子之间,偶极定向排列所产生的作用力.
In the course of teaching in this elective course of Sujiao Version 3 “Material Structure and Properties ”, “Intermolecular Force Molecular Crystal ”, the students formed the reason for the intermolecular forces (including van der Waals forces and hydrogen bonding) And the impact on the nature of the crystal have many questions, after reading the information on some of my ways, this part of the study and teaching have some help., Van der Waals van der Waals forces is the force between molecules, also known as Van der Waals Force, according to the causes and characteristics of force can be divided into three parts: orientation force, induced force, and dispersion force .1. Orientation force. Polar molecules, the dipole orientation of the force.