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化学中最基本的概念就是分子。分子是由原子组成的一个体系。现在已发现了一百多种元素的原子,世界上一切物质实体都是由原子组成的分子构成的,分子的种类是非常多的,现在已经知道的稳定分子就有千万种以上。化学是以分子为研究对象的科学,化学工作者的任务就是分析、了解分子的组成和结构,并找出其中有关的规律,从而设法合成具有为人类所需要的性质的各种分子,以满足人类的日益增长的需要。
The most basic concept in chemistry is the molecule. A molecule is a system of atoms. Now that there are more than one hundred kinds of atoms, all the physical entities in the world are made up of molecules made up of atoms. There are many types of molecules. There are now more than 10 million kinds of stable molecules known. Chemistry is the science of molecules. The task of chemical workers is to analyze and understand the composition and structure of molecules, and to find out the relevant laws, so as to try to synthesize various molecules with the properties needed by humans to meet The growing needs of humanity.