|
1
H
Hydrogen
1.008
|
2
He
Helium
4.003
|
||||||||||||||||
|
3
Li
Lithium
6.941
|
4
Be
Beryllium
9.012
|
5
B
Boron
10.811
|
6
C
Carbon
12.011
|
7
N
Nitrogen
14.007
|
8
O
Oxygen
15.999
|
9
F
Fluorine
18.998
|
10
Ne
Neon
20.180
|
||||||||||
|
11
Na
Sodium
22.990
|
12
Mg
Magnesium
24.305
|
13
Al
Aluminum
26.982
|
14
Si
Silicon
28.086
|
15
P
Phosphorus
30.974
|
16
S
Sulfur
32.065
|
17
Cl
Chlorine
35.453
|
18
Ar
Argon
39.948
|
||||||||||
|
19
K
Potassium
39.098
|
20
Ca
Calcium
40.078
|
21
Sc
Scandium
44.956
|
22
Ti
Titanium
47.867
|
23
V
Vanadium
50.942
|
24
Cr
Chromium
51.996
|
25
Mn
Manganese
54.938
|
26
Fe
Iron
55.845
|
27
Co
Cobalt
58.933
|
28
Ni
Nickel
58.693
|
29
Cu
Copper
63.546
|
30
Zn
Zinc
65.380
|
31
Ga
Gallium
69.723
|
32
Ge
Germanium
72.640
|
33
As
Arsenic
74.922
|
34
Se
Selenium
78.960
|
35
Br
Bromine
79.904
|
36
Kr
Krypton
83.798
|
|
37
Rb
Rubidium
85.468
|
38
Sr
Strontium
87.620
|
39
Y
Yttrium
88.906
|
40
Zr
Zirconium
91.224
|
41
Nb
Niobium
92.906
|
42
Mo
Molybdenum
95.960
|
43
Tc
Technetium
98.000
|
44
Ru
Ruthenium
101.070
|
45
Rh
Rhodium
102.906
|
46
Pd
Palladium
106.420
|
47
Ag
Silver
107.868
|
48
Cd
Cadmium
112.411
|
49
In
Indium
114.818
|
50
Sn
Tin
118.710
|
51
Sb
Antimony
121.760
|
52
Te
Tellurium
127.600
|
53
I
Iodine
126.904
|
54
Xe
Xenon
131.293
|
|
55
Cs
Cesium
132.905
|
56
Ba
Barium
137.327
|
57
La
Lanthanum
138.905
|
72
Hf
Hafnium
178.490
|
73
Ta
Tantalum
180.948
|
74
W
Tungsten
183.840
|
75
Re
Rhenium
186.207
|
76
Os
Osmium
190.230
|
77
Ir
Iridium
192.217
|
78
Pt
Platinum
195.084
|
79
Au
Gold
196.967
|
80
Hg
Mercury
200.590
|
81
Tl
Thallium
204.383
|
82
Pb
Lead
207.200
|
83
Bi
Bismuth
208.980
|
84
Po
Polonium
209.000
|
85
At
Astatine
210.000
|
86
Rn
Radon
222.000
|
|
87
Fr
Francium
223.000
|
88
Ra
Radium
226.000
|
89
Ac
Actinium
227.000
|
104
Rf
Rutherfordium
261.000
|
105
Db
Dubnium
262.000
|
106
Sg
Seaborgium
266.000
|
107
Bh
Bohrium
264.000
|
108
Hs
Hassium
277.000
|
109
Mt
Meitnerium
268.000
|
110
Ds
Darmstadtium
281.000
|
111
Rg
Roentgenium
272.000
|
112
Cn
Copernicium
285.000
|
113
Nh
Nihonium
286.000
|
114
Fl
Flerovium
289.000
|
115
Mc
Moscovium
290.000
|
116
Lv
Livermorium
293.000
|
117
Ts
Tennessine
294.000
|
118
Og
Oganesson
294.000
|
| Lanthanides |
58
Ce
Cerium
140.116
|
59
Pr
Praseodymium
140.908
|
60
Nd
Neodymium
144.242
|
61
Pm
Promethium
145.000
|
62
Sm
Samarium
150.360
|
63
Eu
Europium
151.964
|
64
Gd
Gadolinium
157.250
|
65
Tb
Terbium
158.925
|
66
Dy
Dysprosium
162.500
|
67
Ho
Holmium
164.930
|
68
Er
Erbium
167.259
|
69
Tm
Thulium
168.934
|
70
Yb
Ytterbium
173.054
|
71
Lu
Lutetium
174.967
|
|||
| Actinides |
90
Th
Thorium
232.038
|
91
Pa
Protactinium
231.036
|
92
U
Uranium
238.029
|
93
Np
Neptunium
237.000
|
94
Pu
Plutonium
244.000
|
95
Am
Americium
243.000
|
96
Cm
Curium
247.000
|
97
Bk
Berkelium
247.000
|
98
Cf
Californium
251.000
|
99
Es
Einsteinium
252.000
|
100
Fm
Fermium
257.000
|
101
Md
Mendelevium
258.000
|
102
No
Nobelium
259.000
|
103
Lr
Lawrencium
262.000
|
|||