+1, -1
H
1.008
1
2.20
Hydrogen
0
He
4.0026
2
None
Helium
+1
Li
6.94
3
0.98
Lithium
+2
Be
9.0122
4
1.57
Beryllium
-5, +3
B
10.81
5
2.04
Boron
-4, +2, +4
C
12.011
6
2.55
Carbon
-3, +1, +2, +3, +4, +5
N
14.007
7
3.04
Nitrogen
-2
O
15.999
8
3.44
Oxygen
-1
F
18.998
9
3.98
Fluorine
0
Ne
20.180
10
None
Neon
+1
Na
22.990
11
0.93
Sodium
+2
Mg
24.305
12
1.31
Magnesium
+3
Al
26.982
13
1.61
Aluminium
-4, +2, +4
Si
28.085
14
1.90
Silicon
-3, +1, +3, +5
P
30.974
15
2.19
Phosphorus
-2, +2, +4, +6
S
32.06
16
2.58
Sulfur
-1, +1, +3, +5, +7
Cl
35.45
17
3.16
Chlorine
0
Ar
39.948
18
None
Argon
+1
K
39.098
19
0.82
Potassium
+2
Ca
40.078
20
1.00
Calcium
+3
Sc
44.956
21
1.36
Scandium
+2, +3, +4
Ti
47.867
22
1.54
Titanium
+2, +3, +4, +5
V
50.942
23
1.63
Vanadium
+2, +3, +6
Cr
51.996
24
1.66
Chromium
+2, +3, +4, +6, +7
Mn
54.938
25
1.55
Manganese
+2, +3
Fe
55.845
26
1.83
Iron
+2, +3
Co
58.933
27
1.88
Cobalt
+2, +3
Ni
58.693
28
1.91
Nickel
+1, +2
Cu
63.546
29
1.90
Copper
+2
Zn
65.38
30
1.65
Zinc
+3
Ga
69.723
31
1.81
Gallium
-4, +2, +4
Ge
72.630
32
2.01
Germanium
-3, +3, +5
As
74.922
33
2.18
Arsenic
-2, +4, +6
Se
78.971
34
2.55
Selenium
-1, +1, +3, +5
Br
79.904
35
2.96
Bromine
0
Kr
83.798
36
3.00
Krypton
+1
Rb
85.468
37
0.82
Rubidium
+2
Sr
87.62
38
0.95
Strontium
+3
Y
88.906
39
1.22
Yttrium
+4
Zr
91.224
40
1.33
Zirconium
+3, +5
Nb
92.906
41
1.6
Niobium
+2, +3, +4, +5, +6
Mo
95.95
42
2.16
Molybdenum
+4, +5, +6, +7
Tc
98
43
1.9
Technetium
+2, +3, +4, +6, +8
Ru
101.07
44
2.2
Ruthenium
+2, +3, +4
Rh
102.91
45
2.28
Rhodium
+2, +4
Pd
106.42
46
2.20
Palladium
+1
Ag
107.87
47
1.93
Silver
+2
Cd
112.41
48
1.69
Cadmium
+3
In
114.82
49
1.78
Indium
-4, +2, +4
Sn
118.71
50
1.96
Tin
-3, +3, +5
Sb
121.76
51
2.05
Antimony
-2, +2, +4, +6
Te
127.60
52
2.1
Tellurium
-1, +1, +3, +5, +7
I
126.90
53
2.66
Iodine
0, +2, +4, +6, +8
Xe
131.29
54
2.6
Xenon
+1
Cs
132.91
55
0.79
Cesium
+2
Ba
137.33
56
0.89
Barium
+3
La
138.91
57
1.1
Lanthanum
+4
Hf
178.49
72
1.3
Hafnium
+5
Ta
180.95
73
1.5
Tantalum
+2, +3, +4, +5, +6
W
183.84
74
2.36
Tungsten
+1, +2, +3, +4, +5, +6
Re
186.21
75
1.9
Rhenium
+2, +3, +4, +6, +8
Os
190.23
76
2.2
Osmium
+3, +4, +6
Ir
192.22
77
2.2
Iridium
+2, +4
Pt
195.08
78
2.28
Platinum
+1, +3
Au
196.97
79
2.54
Gold
+1, +2
Hg
200.59
80
2.00
Mercury
+1, +3
Tl
204.38
81
1.62
Thallium
+2, +4
Pb
207.2
82
2.33
Lead
+3, +5
Bi
208.98
83
2.02
Bismuth
+2, +4
Po
209
84
2.0
Polonium
-1, +1, +3, +5, +7
At
210
85
2.2
Astatine
0
Rn
222
86
N/A
Radon
+1
Fr
223
87
0.7
Francium
+2
Ra
226.03
88
0.9
Radium
+3
Ac
227
89
1.1
Actinium
+4
Rf
267
104
N/A
Rutherfordium
+5
Db
270
105
N/A
Dubnium
+6
Sg
271
106
N/A
Seaborgium
+7
Bh
270
107
N/A
Bohrium
+8
Hs
277
108
N/A
Hassium
+1
Mt
278
109
N/A
Meitnerium
+2
Ds
281
110
N/A
Darmstadtium
+1
Rg
280
111
N/A
Roentgenium
+2
Cn
285
112
N/A
Copernicium
+1
Nh
284
113
N/A
Nihonium
+2
Fl
289
114
N/A
Flerovium
+3
Mc
288
115
N/A
Moscovium
+3
Lv
293
116
N/A
Livermorium
+1
Ts
294
117
N/A
Tennessine
0
Og
294
118
N/A
Oganesson