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1.苯环及大π键学习知识基础分析在有关苯的化学性质教学中,认识大π键是建立芳香烃的特性芳香性概念的基础。据化学常识,认识大π键则需要以下相关化学知识:(1)电子云(2)电子轨道(3)核外电子的运动状态及四个量子数即主量子数(电子层)角量子数(电子亚层)磁量子数(电子轨道)自旋量子数(电子自旋方向)(4)键参数:键能、键角、键长共价键等。2.教材缺陷分析安徽省五年制护理专业高职规划教材《医用化学》在编写第二版时,根据所谓“教材在不影响化学知识前后相继的前提
1. Benzene ring and large π bond learning knowledge base analysis In the chemical properties of benzene teaching, understanding large π bond is to establish the aromatic aromatic characteristics of the concept of aromatic basis. According to chemical common sense, knowledge of large π bonds requires the following relevant chemical knowledge: (1) Electron Cloud (2) Electron Orbitals (3) Movement states of extranuclear electrons and four quantum numbers, that is, the main quantum number (Electron sublayer) magnetic quantum number (electron orbit) spin quantum number (electron spin direction) (4) key parameters: key energy, bond angle, bond length covalent bond. 2. Textbook defect analysis Five-year nursing professional teaching materials in Anhui Province ”Medical Chemistry“ in the preparation of the second edition, according to the so-called ”textbook without affecting the chemical knowledge before and after the premise