大学化学 >> 2020, Vol. 35 >> Issue (8): 103-106.doi: 10.3866/PKU.DXHX201908013

所属专题: 无机化学课程教学

师生笔谈 上一篇    下一篇

氧化数教学争议的化解

张颖, 权新军()   

  • 收稿日期:2019-08-11 录用日期:2019-09-05 发布日期:2019-09-16
  • 通讯作者: 权新军 E-mail:quanxinjun@sina.com
  • 基金资助:
    吉林大学本科教学改革研究项目(2019XYB081)

Resolution about the Controversial Issues of Oxidation Number in Teaching

Ying Zhang, Xinjun Quan()   

  • Received:2019-08-11 Accepted:2019-09-05 Published:2019-09-16
  • Contact: Xinjun Quan E-mail:quanxinjun@sina.com

摘要:

从氧化数的定义和氧化数概念的发展过程入手,分析了氧化数教学中存在的争议,提出确定氧化数的规则应加上元素的正氧化数小于或等于原子的外围电子总数,解决了结构比较复杂和结构未知的化合物中元素氧化数的计算问题。

关键词: 氧化数, 争议, 补充规则

Abstract:

Starting with the definition of oxidation number and the development of its concept, the controversial issues in the teaching of oxidation number were discussed in this paper, and the rule that the positive oxidation number of the element should be less than or equal to the total numbers of valence electrons of the atom was put forward to determine the oxidation number. Additionally, the calculation of oxidation number in the compounds with complex structure and unknown structure has been resolved.

Key words: Oxidation number, Controversial issue, Supplementary rule

MSC2000: 

  • G64