在初中学业水平考试中,分子、原子、离子这部分内容需要学生注意的有以下几点:1.认识物质的微粒性,知道分子、原子、离子等都是构成物质的微粒;2.能用微粒的观点解释某些常见现象;3.知道原子是由原子核和核外电子构成的;4.知道原子可以结合成分子,同一元素的原子和离子可以互相转化,初步认 In the junior high school academic proficiency test, the contents of the molecule, atom, ion in this part of the students need to pay attention to the following points: 1. Understanding of the particulate matter, that molecules, atoms, ions and so constitute the material particles; Particles point of view to explain some common phenomena; 3. Know that the atom is composed of nuclei and nuclear electrons; 4. Know that atoms can be combined into molecules, atoms and ions of the same element can be mutually transformed, initially identified