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Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is given a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7.lectronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is given a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7.
Electronegativity is a quadratic function of partial charge given by the following equation. Where q is the partial charge on the atom a,b, and c are coefficients determined from I v and E v Orbital electronegativity, and subsequently partial charge distribution of any molecule is calculated iteratively. 3. Examples of Charge Calculation Example 1.