Electronegativity A measure of the

Electronegativity A measure of the attracting power of an atom for an electron in a chemical bond. 

Fig. 19. Plot of experimental PA of ethyl-amine and fluoro derivatives against residual electronegativity, a measure of the inductive effect...

Electronegativity A measure of the tendency of an atom to attract bonding electrons. 

Closely related to ionization energy and electron affinity is the concept of electronegativity, a measure of the ability of an atom to attract shared electrons in a bond. We usually use electronegativities in a qualitative way, for example, to predict bond polarities (see Chapter 8). Electronegativities, on a dimensionless scale ranging from 0 to 4, are given in Table 7-2. 

Edman degradation a method for determining the amino acid sequence of peptides and proteins (5.4) electronegativity a measure of the tendency of an atom to attract electrons to it in a chemical bond (2.1) electron transport to oxygen a series of oxidation-reduction reactions by which the electrons derived from oxidation of nutrients are passed to oxygen (19.1) electrophile an electron-poor substance that tends to react with centers of negative charge or polarization (7.5)... 

Electronegativity A measure of the ability of an atom to attract the electrons in a covalent bond toward itself. Fluorine is the most electronegative element. 

Electronegativity A measure of the force of an atom s attraction for electrons it shares in a chemical bond with another atom. 

Pauling suggested that these comparisons of bond dissociation energies can be used to build up a relative scale of electronegativity, a measure of the attraction of an atomic core to draw electron density toward itself when part of a molecule. 

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