摘要
高中化学选择性必修2模块《物质结构与性质》理论性很强、内容抽象,许多学生对多电子原子的核外电子排布规律的掌握不太好.教学时可以利用n+0.7l规则进行推演,将抽象知识形象化、繁琐内容简便化以方便学生记忆,减轻学生学习时的畏难情绪.同时,n+0.7l规则可使学生更熟练的书写多电子原子核外电子排布.
The "material structure and property" as an optional chemistry course for senior high-school students is highly theoretical and abstract, and it is difficult for the students to understand the arrangement of extra-nuclear electrons of multi-electron atoms. This research proposes that the(n+0.7l) rule can be used for deductive analysis in teaching, because it can not only visualize the abstract knowledge and simplify the tedious content, but also facilitate the memory and reduce the students′ fear of difficulties in learning. Meanwhile, the(n+0.7l) rule can make the students more proficient in writing the extra-nuclear electron arrangement of multi-electron atoms.
作者
七林竹玛
李曼弯
杨艳华
王宝玲
李艳妮
高树林
黄素芳
Qilin Zhuma;LI Man-wan;YANG Yan-hua;WANG Bao-ling;LI Yan-ni;GAO Shu-lin;HUANG Su-fang(School of Chemistry and Chemical Engineering,Kunming University,Kunming 650214,China;No.1 Senior High School of Mengzi,Mengzi 661100,China)
出处
《云南民族大学学报（自然科学版）》
CAS
2021年第3期301-304,共4页
Journal of Yunnan Minzu University:Natural Sciences Edition
基金
云南省教育厅科学研究基金(2020J0506)
昆明学院引进人才科研项目(YJL2008)。
关键词
核外电子排布
n+0.7l规则
推演
实用性
arrangement of extra-nuclear electrons
the(n+0.7l)rule
deductive analysis
practicability
