利用光谱实验证据引导学生认识核外电子的运动状态  

Using Spectral Experimental Evidence to Guide Students to Understand theMotion State of Extranuclear Electrons

作　　者：王涛 胡小宁 WANG Tao;HU Xiao-Ning(The Affiliated High School of Henan University,Kaifeng 475001,China)

机构地区：[1]河南大学附属中学,河南开封475001

出　　处：《化学教育（中英文）》2023年第9期62-69,共8页Chinese Journal of Chemical Education

基　　金：河南省基础教育教学研究项目(JCJYC212600016)。

摘　　要：介绍了高中化学“核外电子运动状态的描述(选择性必修2)”的教学设计思路,在教学中融合了科学家基于光谱实验证据引入4个量子数描述核外电子运动状态的发展历史,引导学生发展性地构建原子结构模型,并与化学微观世界的认识视角有机地结合起来。呈现了相关的教学实录,包括通过光谱实验激发学生的认知冲突;分析原子光谱,引入描述核外电子运动状态的物理量;观察电子云,认识量子化的原子结构模型等环节。并且通过学生的表现,对教学目标进行了评估。This paper introduces the teaching design idea of“description of extranuclear electron motion state(optional compulsory 2)”in senior high school chemistry.In the teaching,integrate the development history of scientists introducing four quantum number to describe the motion state of extranuclear electrons based on spectral experimental evidence,guide students to develop the atomic structure model,and organically combine it with the cognitive perspective of chemical microcosm.This paper presents relevant teaching records,including stimulating students’cognitive conflicts through spectral experiments;The atomic spectrum is analyzed,and the physical quantity describing the motion state of extranuclear electrons is introduced;Observe the electron cloud and understand the quantized atomic structure model.Through the performance of students,the teaching objectives are evaluated.

关 键 词：核外电子运动状态 原子光谱 电子云 教学设计 

分 类 号：G633.8[文化科学—教育学]