铯与氟——元素金属性与非金属性之最  

Caesium and Fluorine: the Most Metallic and Nonmetallic Elements

作　　者：孙雨晗 田红玉[1] SUN Yu-Han;TIAN Hong-Yu(School of Light Industry,Beijing Technology and Business University,Beijing 100048,China)

机构地区：[1]北京工商大学轻工科学技术学院,北京100048

出　　处：《化学教育（中英文）》2022年第5期102-106,共5页Chinese Journal of Chemical Education

摘　　要：对有关金属性的几个标度进行简要分析,介绍一种适用性更广的电负性标度;辨析电子亲和能和电负性的概念,从而明确学生对金属性和非金属性之最元素的认知。同时对高中人教版必修1中元素周期律和碱金属的教学提出建议。Several scales of metallicity are briefly analyzed, and a more applicable electronegativity scale is introduced;the concepts of electron affinity energy and electronegativity are analyzed to clarify students’ cognition of the most metallic and nonmetallic elements. At the same time, the teaching methods of element periodic law and alkali metals in compulsory 1 of PEP are proposed.

关 键 词：金属性 非金属性 电负性 

分 类 号：G634.8[文化科学—教育学]