1
H
2.1
                                                                                                                                
0 electronegativity (Pauling's) 4
2
He
3
Li
1		4
Be
1.5		 Electronegativity 5
B
2		6
C
2.5		7
N
3		8
O
3.5		9
F
4		10
Ne

11
Na
0.9		12
Mg
1.2		 13
Al
1.5		14
Si
1.8		15
P
2.1		16
S
2.5		17
Cl
3		18
Ar

19
K
0.8		20
Ca
1		21
Sc
1.3		22
Ti
1.5		23
V
1.6		24
Cr
1.6		25
Mn
1.5		26
Fe
1.8		27
Co
1.8		28
Ni
1.8		29
Cu
1.9		30
Zn
1.6		31
Ga
1.6		32
Ge
1.8		33
As
2		34
Se
2.4		35
Br
2.8		36
Kr
3
37
Rb
0.8		38
Sr
1		39
Y
1.2		40
Zr
1.4		41
Nb
1.6		42
Mo
1.8		43
Tc
1.9		44
Ru
2.2		45
Rh
2.2		46
Pd
2.2		47
Ag
1.9		48
Cd
1.7		49
In
1.7		50
Sn
1.8		51
Sb
1.9		52
Te
2.1		53
I
2.5		54
Xe
2.6
55
Cs
0.7		56
Ba
0.9		57
La
1.1		72
Hf
1.3		73
Ta
1.5		74
W
1.7		75
Re
1.9		76
Os
2.2		77
Ir
2.2		78
Pt
2.2		79
Au
2.4		80
Hg
1.9		81
Tl
1.8		82
Pb
1.8		83
Bi
1.9		84
Po
2		85
At
2.2		86
Rn

87
Fr
0.7		88
Ra
0.9		89
Ac
1.1		104
Rf

105
Db

106
Sg

107
Bh

108
Hs

109
Mt
 
58
Ce
1.1		59
Pr
1.1		60
Nd
1.1		61
Pm
1.1		62
Sm
1.1		63
Eu
1.1		64
Gd
1.1		65
Tb
1.1		66
Dy
1.1		67
Ho
1.1		68
Er
1.1		69
Tm
1.1		70
Yb
1.1		71
Lu
1.2
90
Th
1.2		91
Pa
1.4		92
U
1.5		93
Np
1.3		94
Pu
1.3		95
Am
1.3		96
Cm
1.3		97
Bk
1.3		98
Cf
1.3		99
Es
1.3		100
Fm
1.3		101
Md
1.3		102
No
1.3		103
Lr

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