The Time Evolution of the Electronegativity - Modern Trends in Chemistry and Chemical Engineering - page 47

ground-state properties with respect to electron number such as the electronegativity
and the hardness [63, 101].

CONCLUSION
The electronegativity is very insightful concept in the theory of chemical bonding-
explaining the formation, stability and the structure of molecules and it is quite natu-
ral that it assumes a finer structure as the concept of valence bonding develops and
evolves with time. Some very fundamental quantities of both inorganic, organic, and
physical chemistry are the concept of bond energies, polarities, and the inductive ef-
fects, and so forth can only be conceived in terms of electronegativity. The work dem-
onstrates the fact that in spite of the empirical nature of the electronegativity, it is
one of the most useful theoretical descriptor of science. We have made an attempt to
explain the theoretical basis for the electronegativity equalization principle to address
the reactivity of molecular complexes. We have discussed the major applications of
the electronegativity in the real world and the relationship with other periodic param-
eters. The present study formulates the concept of electronegativity as an unchanging
fundamental immanent characteristic of a chemical entity. However, the attempts to
refine electronegativity theory are not yet sufficiently complete to enable a verdict to
be reached on their efficacy; one might reasonably expect that a clearer understanding
of electronegativity property will be gained with their further development.

ACKNOWLEDGMENTS
We wish to express our sincere thanks to Professor D.C. Ghosh, Dr. Putz, and Dr.
Ayers for their invaluable discussions and comments on this subject.

KEYWORDS

• Dehydroxylation

• Electronegativity

• Hybrid orbit

• Polarizability