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Last updated date: 01st Dec 2023
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# Pauling's electronegativity values for elements are useful in predicting(A) polarity of bonds in molecules(B) Position of element in electrochemical series(C) Coordination number(D) Dipole moment of various molecules

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Hint: The tendency for an atom of a certain chemical element to attract shared electrons (or electron density) while forming a chemical connection is known as electronegativity. The electronegativity of an atom is determined by its atomic number as well as the distance between its valence electrons and the charged nucleus.

The technique of computation first presented by Linus Pauling is the most widely utilised. On a relative scale ranging from 0.79 to 3.98 (hydrogen = 2.20), this yields a dimensionless number known as the Pauling scale ( ${\chi _r}$ ). When different calculation methods are employed, it is customary to quote the findings on a scale that spans the same range of numerical values: this is known as an electronegativity in Pauling units. Electronegativity is a characteristic of an atom in a molecule, not a property of an atom alone, as is commonly assumed.
$|{\chi _{\text{A}}} - {\chi _{\text{B}}}| = {({\text{eV}})^{ - 1/2}}\sqrt {{E_{\text{d}}}({\text{AB}}) - \dfrac{{{E_{\text{d}}}({\text{AA}}) + {E_{\text{d}}}({\text{BB}})}}{2}}$