What factor, important in determining atom electronegativity, determines that th

Question

What factor, important in determining atom electronegativity, determines that the electronegativity of two different elements are never equal (as several values from Pauling’s table indicate)? For example it is observed that x(C)<x(S) and x(N)<x(Cl).

2.1 Li Be 1.0 1.5 11 12 Na Mg 0.9 1.2 19 20 21 2223 24 25 26 272829 30 31 323334 35 K Ca ScT V Cr Mn Fe CoNi Cu Zn Ga Ge As Se Br 0.8 1.013 1.5 1.61.61.51.89 .9 1.9 1.6 1.6 1.8 2.0 2.4 2.8 37 38 39 40 41 42 434445 46 47 48 4950 51 52 53 2.0 2.5 3.0 3.5 4.0 13 14 1516 17 Al Si PS CI 1.5 1.8 2.1 2.5 3.0 0.8 10 1.2 1.4 1.6 1.8 19 2.22.22.2917 17 1.8 19 2.1 2.5 55 56 57 72 73 7475767778 79 80 81 82 83 84 85 0.7 0.9 1.3 1.5 1719 2.22.2 2.22,41.9 1.8 1.9 19 2.0 2. 87 88 89 Fr Ra Ac 0.7 0.9 1. Electronegativities of the Elements

Explanation / Answer

Based on calculating the bond energies of single elements in different kinds of bonds, it could be
ionic, polar or polar/nonpolar covalent bond electronegativity can be determined. All atoms
do not have the same capacity or bonding to attract electrons, different atoms attract electrons
depending on this attraction.

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