Elektroujemność pierwiastków wg Paulinga ( P) i Allreda-Rochowa ( A-R).
Z
P
A-R
Z
P
A-R
1
H
2,20
2,20
48 Cd
1,69
1,46
2
He
–
5,50
49 In
1,78
1,49
3
Li
0,98
0,97
50 SnII
1,8
–
4
Be
1,57
1,47
SnIV
1,96
1,72
5
B
2,04
2,01
51 Sb
2,05
1,82
6
C
2,55
2,50
52 Te
2,1
2,01
7
N
3,04
3,07
53 I
2,66
2,21
8
O
3,44
3,50
54 Xe
2,60
2,40
9
F
3,98
4,10
55 Cs
0,79
0,86
10
Ne
–
4,84
56 Ba
0,89
0,97
11
Na
0,93
1,01
57 La
1,1
1,08
12
Mg
1,31
1,23
58 Ce
1,12
1,08
13
Al
1,61
1,47
59 Pr
1,13
1,07
14
Si
1,9
1,74
60 Nd
1,14
1,07
15
P
2,19
2,06
61 Pm
–
1,07
16
S
2,58
2,44
62 Sm
1,17
1,07
17
Cl
3,16
2,83
63 Eu
–
1,01
18
Ar
–
3,20
64 Gd
1,2
1,11
19
K
0,82
0,91
65 Tb
–
1,10
20
Ca
1,0
1,04
66 Dy
1,22
1,10
21
Sc
1,36
1,20
67 Ho
1,23
1,10
22
Ti
1,54
1,32
68 Er
1,24
1,11
23
V
1,63
1,45
69 Tm
1,25
1,11
24
Cr
1,66
1,56
70 Yb
–
1,06
25
Mn
1,55
1,60
71 Lu
1,27
1,14
26
Fe
–
1,64
72 Hf
1,3
1,23
FeII
1,83
–
73 Ta
1,5
1,33
FeIII
1,96
–
74 W
2,36
1,40
27
CoII
1,88
1,70
75 Re
1,9
1,46
28
Ni
1,91
1,75
76 Os
2,2
1,52
29
Cu
–
1,75
77 Ir
2,2
1,55
CuI
1,9
–
78 Pt
2,28
1,44
CuII
2,0
–
79 Au
2,54
1,42
30
Zn
1,65
1,66
80 Hg
2,0
1,44
31
Ga
1,81
1,82
81 TlI
1,62
1,44
32
Ge
2,01
2,02
TlII
2,04
–
33
As
2,18
2,20
82 PbII
1,87
1,55
34
Se
2,55
2,48
PbIV
2,33
–
35
Br
2,96
2,74
83 Bi
2,02
1,67
36
Kr
3,00
2,94
84 Po
2,0
1,76
37
Rb
0,82
0,89
85 At
2,2
1,90
38
Sr
0,95
0,99
86 Rn
–
2,06
39
Y
1,22
1,11
87 Fr
0,7
0,86
40
Zr
1,33
1,22
88 Ra
0,9
0,97
41
Nb
1,6
1,23
89 Ac
1,1
1,00
42
Mo
–
1,30
90 Th
1,3
1,11
MoII
2,16
–
91 Pa
1,5
1,14
MoIII
2,19
–
92 U
1,7
1,22
MoIV
2,24
–
93 Np.
1,3
1,22
MoV
2,27
–
94 Pu
1,3
1,22
MoVI
2,35
–
95 Am
1,3
1,2
43
Tc
1,9
1,36
96 Cm
1,3
1,2
44
Ru
2,2
1,42
97 Bk
1,3
1,2
45
Rh
2,28
1,45
98 Cf
1,3
1,2
46
Pd
2,2
1,35
99 Es
1,3
1,2
47
Ag
1,93
1,42
100 Fm
1,3
1,2
48
Cd
1,69
1,46
101 Md
1,3
1,2
49
In
1,78
1,49
102 No
1,3
1,2
Wybrane wartości powinowactwa elektronowego ( A ) i kolejnych energii jonizacji w eV.
e
Z
nr
Ae
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
1
H
1+
0.75
13.60
2
He 2+
24.59
54.42
3
Li
1+
0.62
5.39
75.64 122.45
4
Be 2+
9.32
18.21 153.90 217.72
5
B
3+
0.28
8.30
25.15
37.93 259.38 340.23
6
C
4+
1.26
11.26
24.38
47.89
64.49 392.09 489.99
7
N
5+
14.53
29.60
47.45
77.47
97.89 552.07
667.0
8
O
6+
1.46
13.62
35.12
54.94
77.41 113.90 138.12
739.3
871.4
9
F
7+
3.40
17.42
34.97
62.71
87.14 114.24 157.17
185.2
953.9 1103.1
10 Ne 8+
21.56
40.96
63.45
97.12 126.21 157.93
207.3
239.1 1195.8
11 Na 1+
0.55
5.14
47.29
71.62
98.91 138.40 172.18 208.50
264.3
299.9
12 Mg 2+
7.65
15.04
80.14 109.27 141.27 186.76 225.02
266.0
328.1
13
Al
3+
0.43
5.99
18.83
28.45 119.99 153.83 190.49 241.76
284.7
330.1
14
Si
4+
1.39
8.15
16.35
33.49
45.14 166.77 205.27 246.50
303.5
351.1
15
P
5+
0.75
10.49
19.77
30.20
51.44
65.03 220.42 263.57
309.6
372.1
16
S
6+
2.08
10.36
23.34
34.79
47.22
72.59
88.05 280.95
328.8
379.6
17
Cl
7+
3.61
12.97
23.81
39.61
53.47
67.80
97.03 114.20
348.3
400.1
18
Ar
8+
15.76
27.63
40.74
59.81
75.02
91.01 124.32
143.5
422.5
19
K
1+
0.50
4.34
31.63
45.81
60.91
82.66
99.40
117.6
154.9
175.8
503.8
564.7
629.4
20 Ca
2+
0.02
6.11
11.87
50.91
67.27
84.50 108.78
127.2
147.2
188.5
211.3
591.9
657.2
21
Sc
3+
0.19
6.56
12.80
24.76
73.49
91.65 110.68
138.0
158.1
180.0
225.2
249.8
687.4
22
Ti
4+
0.08
6.83
13.58
27.49
43.27
99.30 119.53
140.8
170.4
192.1
215.9
265.1
291.5
23
V
5+
0.53
6.75
14.66
29.31
46.71
65.28 128.13
150.6
173.4
205.8
230.5
255.7
308.1
24
Cr
6+
0.67
6.77
16.49
30.96
49.16
69.46
90.63
160.2
184.7
209.3
244.4
270.8
298.0
25 Mn 7+
7.43
15.64
33.67
51.20
72.40
95.60
119.2
194.5
221.8
248.3
286.0
314.4
26
Fe
8+
0.15
7.90
16.19
30.65
54.80
75.00
99.10
125.0
151.1
233.6
262.1
290.2
330.8
27 Co 9+
0.66
7.88
17.08
33.50
51.30
79.50 102.00
128.9
157.8
186.1
275.4
305.0
336.0
28
Ni 10+
1.16
7.64
18.17
35.19
54.90
76.06 108.00
133.0
162.0
193.0
224.6
321.0
352.0
29 Cu 11+
1.24
7.73
20.29
36.84
57.38
79.80 103.00
139.0
166.0
199.0
232.0
265.3
369.0
30 Zn 2+
9.39
17.96
39.72
31 Ga 3+
0.43
6.00
20.51
30.71
64.00
32 Ge 4+
1.23
7.90
15.93
34.22
45.71
93.50
33 As 5+
0.81
9.79
18.63
28.35
50.13
62.63
127.6
34
Se
6+
2.02
9.75
21.19
30.82
42.95
68.30
81.7
155.4
35
Br
7+
3.36
11.81
21.80
36.00
47.30
59.70
88.6
103.0
192.8
36
Kr
8+
14.00
24.36
36.95
52.50
64.70
78.5
111.0
125.8
230.9