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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