G
P
1
Hydrogen
1.007
2
Helium
4.002
3
Lithium
6.941
4
Beryllium
9.012
5
Boron
10.811
6
Carbon
12.011
7
Nitrogen
14.007
8
Oxygen
15.999
9
Fluorine
18.998
10
Neon
20.18
11
Sodium
22.99
12
Magnesium
24.305
13
Aluminum
26.982
14
Silicon
28.086
15
Phosphorus
30.974
16
Sulfur
32.065
17
Chlorine
35.453
18
Argon
39.948
19
Potassium
39.098
20
Calcium
40.078
21
Scandium
44.956
22
Titanium
47.867
23
Vanadium
50.942
24
Chromium
51.996
25
Manganese
54.938
26
Iron
55.845
27
Cobalt
58.933
28
Nickel
58.693
29
Copper
63.546
30
Zinc
65.38
31
Gallium
69.723
32
Germanium
72.64
33
Arsenic
74.922
34
Selenium
78.96
35
Bromine
79.904
36
Krypton
83.798
37
Rubidium
85.468
38
Strontium
87.62
39
Yttrium
88.906
40
Zirconium
91.224
41
Niobium
92.906
42
Molybdenum
95.96
43
Technetium
98
44
Ruthenium
101.07
45
Rhodium
102.906
46
Palladium
106.42
47
Silver
107.868
48
Cadmium
112.411
49
Indium
114.818
50
Tin
118.71
51
Antimony
121.76
52
Tellurium
127.6
53
Iodine
126.904
54
Xenon
131.293
55
Cesium
132.905
56
Barium
137.327
72
Hafnium
178.49
73
Tantalum
180.948
74
Tungsten
183.84
75
Rhenium
186.207
76
Osmium
190.23
77
Iridium
192.217
78
Platinum
195.084
79
Gold
196.967
80
Mercury
200.59
81
Thallium
204.383
82
Lead
207.2
83
Bismuth
208.98
84
Polonium
210
85
Astatine
86
Radon
222
87
Francium
223
88
Radium
226
104
Rutherfordium
261
105
Dubnium
262
106
Seaborgium
266
107
Bohrium
264
108
Hassium
267
109
Meitnerium
268
110
Darmstadtium
271
111
Roentgenium
272
112
Copernicium
285
113
Nihonium
284
114
Flerovium
289
115
Moscovium
288
116
Livermorium
292
117
Tennessine
295
118
Oganesson
294
57
Lanthanum
138.905
58
Cerium
140.116
59
Praseodymium
140.908
60
Neodymium
144.242
61
Promethium
145
62
Samarium
150.36
63
Europium
151.964
64
Gadolinium
157.25
65
Terbium
158.925
66
Dysprosium
162.5
67
Holmium
164.93
68
Erbium
167.259
69
Thulium
168.934
70
Ytterbium
173.054
71
Lutetium
174.967
89
Actinium
227
90
Thorium
232.038
91
Protactinium
231.036
92
Uranium
238.029
93
Neptunium
237
94
Plutonium
244
95
Americium
243
96
Curium
247
97
Berkelium
Californium
251
99
Einsteinium
252
100
Fermium
257
101
Mendelevium
258
102
Nobelium
259
103
Lawrencium