University Chemistry ›› 2020, Vol. 35 ›› Issue (1): 32-39.doi: 10.3866/PKU.DXHX201903038

• Survey of Chemistry • Previous Articles     Next Articles

Re-discussion on the Development of Electronegativity Scales

Renqing Lü1,*(),Tao Sun2,Fang Wang1,Shutao Wang1   

  1. 1 College of Science, China University of Petroleum(East China), Qingdao 266580, Shandong Province, P. R. China
    2 Shengli No.l Middle School, Dongying 257000, Shandong Province, P. R. China
  • Received:2019-03-31 Accepted:2019-05-06 Published:2019-05-24
  • Contact: Renqing Lü


Electronegativity has been one of the most important concepts in chemistry. It plays a critical role in fundamental chemistry courses. This paper proposed a view of three periods on the development of electronegativity. The process of deepening and gradually developing in understanding of electronegativity scale is briefly described. On the basis of a brief description of different electronegativity scales, the difference between absolute electronegativity scale, Pauling type electronegativity scale, Allen electronegativity scale and its modified Rahm electronegativity scale were discussed emphatically. The re-discussion is undoubtedly helpful for the in-depth understanding about the concept of electronegativity and the reform of teaching contents in fundamental studies.

Key words: Electronegativity, Pauling type electronegativity scale, Absolute electronegativity scale, Allen electronegativity scale


  • G64