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Electronegativity02:54

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Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements
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Evaluation of Electronegativity Scales.

Gordon D Sproul1

  • 1Natural Sciences Division, University of South Carolina Beaufort, Beaufort, South Carolina 29909, United States.

ACS Omega
|June 2, 2020
PubMed
Summary

Electronegativity scales predict chemical bond types. A new evaluation method using binary compounds shows Allen, Martynov and Batsanov, and Nagle scales excel at distinguishing ionic, covalent, and metallic bonds.

Area of Science:

  • Chemistry
  • Materials Science

Background:

  • Electronegativity scales are crucial for understanding chemical properties like bond polarity and reactivity.
  • Existing scales offer similar trends but vary in predictive accuracy.
  • Evaluating new scales often relies on comparisons with older scales, lacking independent validation.

Purpose of the Study:

  • To develop an independent method for evaluating the quality of electronegativity scales.
  • To assess the predictive power of various electronegativity scales in distinguishing bond types.

Main Methods:

  • A dataset of binary compounds with known ionic, covalent, and metallic bonding characters was compiled.
  • Electronegativity values of bonded atoms were plotted to visualize bond type separation.
  • Three quantitative parameters were used to evaluate the performance of 14 different electronegativity scales.

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Main Results:

  • Plotting electronegativity values for binary compounds revealed a general tripartite separation of ionic, covalent, and metallic bond types.
  • The Allen, Martynov and Batsanov, and Nagle electronegativity scales demonstrated superior performance in predicting bond type separations.
  • The developed scheme successfully evaluated the quality of a recently published electronegativity scale.

Conclusions:

  • The proposed method provides an effective, independent means to assess electronegativity scales.
  • The Allen, Martynov and Batsanov, and Nagle scales are recommended for their accuracy in predicting bond types.
  • This evaluation framework can be applied to future electronegativity scales to ensure their reliability.