论文部分内容阅读
化学必然是针对实验室中的各类物质进行的。在初中化学框架内,物质的基本组成单元包括原子、分子、离子和基团,这些基本单元组成的形形色色的物质,就是化学研究的对象,也是化学言之有物的根本支撑。作者对组成物质的几种基本单元及其之间的联系与区别进行了阐述,希望帮助广大初中学生掌握物质组成这部分的内容和知识,进而学好初中化学这门课程。
Chemistry is necessarily for all kinds of substances in the laboratory. In the chemical framework of junior high school, the basic unit of matter includes atoms, molecules, ions and groups. The various kinds of materials composed of these basic units are the objects of chemical research and also the fundamental support of the chemical materials. The author elaborates the basic elements of the composition of the material and the relationship between them and the difference between them, hoping to help the majority of junior high school students master the content and knowledge of the material composition, and then learn this course of junior high school chemistry.