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Appendix H: Electronegativity

Electronegativity

Atom Atomic No. Electronegativity
H 1 2.2
He 2
Li 3 1.0
Be 4 1.6
B 5 2.1
C 6 2.6
N 7 3.1
O 8 3.5
F 9 4.0
Ne 10
Na 11 1.0
Mg 12 1.3
Al 13 1.6
Si 14 1.9
P 15 2.2
S 16 2.6
Cl 17 3.2
Ar 18
K 19 0.8
Ca 20 1.0
Sc 21 1.4
Ti 22 1.6
V 23 1.7
Cr 24 1.7
Mn 25 1.6
Fe 26 1.9
Co 27 1.9
Ni 28 1.9
Cu 29 1.9
Zn 30 1.7
Ga 31 1.8
Ge 32 2.0
As 33 2.2
Se 34 2.6
Br 35 3.0
Kr 36 3.4
Rb 37 0.8
Sr 38 1.0
Y 39 1.2
Zr 40 1.4
Nb 41
Mo 42 2.2
Tc 43
Ru 44
Rh 45 2.3
Pd 46 2.2
Ag 47 2.0
Cd 48 1.7
In 49 1.8
Sn 50 2.0
Sb 51 2.1
Te 52 2.1
I 53 2.7
Xe 54 3.0
Cs 55 0.8
Ba 56 0.9
La 57
Ce 58
Pr 59
Nd 60
Pm 61
Sm 62
Eu 63
Gd 64
Tb 65
Dy 66
Ho 67
Er 68
Tm 69
Yb 70
Lu 71
Hf 72
Ta 73
W 74 2.4
Re 75
Os 76
Ir 77 2.2
Pt 78 2.3
Au 79 2.6
Hg 80 2.0
Tl 81 2.1
Pb 82 2.4
Bi 83 2.0
Po 84 2.0
At 85 2.2
Rn 86
Allred, A. L. J. Inorg. Nucl. Chem. 1961, 17, 215.
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