#
Mass
Symbol
Name
1
1.00794
H
Hydrogen
#
Mass
Symbol
Name
2
4.002602
He
Helium
#
Mass
Symbol
Name
3
6.941
Li
Lithium
#
Mass
Symbol
Name
4
9.012182
Be
Beryllium
#
Mass
Symbol
Name
5
10.811
B
Boron
#
Mass
Symbol
Name
6
12.0107
C
Carbon
#
Mass
Symbol
Name
7
14.0067
N
Nitrogen
#
Mass
Symbol
Name
8
15.9994
O
Oxygen
#
Mass
Symbol
Name
9
18.9984032
F
Fluorine
#
Mass
Symbol
Name
10
20.1797
Ne
Neon
#
Mass
Symbol
Name
11
22.98977
Na
Sodium
#
Mass
Symbol
Name
12
24.305
Mg
Magnesium
#
Mass
Symbol
Name
13
26.981538
Al
Aluminum
#
Mass
Symbol
Name
14
28.0855
Si
Silicon
#
Mass
Symbol
Name
15
30.973761
P
Phosphorus
#
Mass
Symbol
Name
16
32.065
S
Sulfur
#
Mass
Symbol
Name
17
35.453
Cl
Chlorine
#
Mass
Symbol
Name
18
39.948
Ar
Argon
#
Mass
Symbol
Name
19
39.0983
K
Potassium
#
Mass
Symbol
Name
20
40.078
Ca
Calcium
#
Mass
Symbol
Name
21
44.95591
Sc
Scandium
#
Mass
Symbol
Name
22
47.867
Ti
Titanium
#
Mass
Symbol
Name
23
50.9415
V
Vanadium
#
Mass
Symbol
Name
24
51.9961
Cr
Chromium
#
Mass
Symbol
Name
25
54.938049
Mn
Manganese
#
Mass
Symbol
Name
26
55.845
Fe
Iron
#
Mass
Symbol
Name
27
58.9332
Co
Cobalt
#
Mass
Symbol
Name
28
58.6934
Ni
Nickel
#
Mass
Symbol
Name
29
63.546
Cu
Copper
#
Mass
Symbol
Name
30
65.409
Zn
Zinc
#
Mass
Symbol
Name
31
69.723
Ga
Gallium
#
Mass
Symbol
Name
32
72.64
Ge
Germanium
#
Mass
Symbol
Name
33
74.9216
As
Arsenic
#
Mass
Symbol
Name
34
78.96
Se
Selenium
#
Mass
Symbol
Name
35
79.904
Br
Bromine
#
Mass
Symbol
Name
36
83.798
Kr
Krypton
#
Mass
Symbol
Name
37
85.4678
Rb
Rubidium
#
Mass
Symbol
Name
38
87.62
Sr
Strontium
#
Mass
Symbol
Name
39
88.90585
Y
Yttrium
#
Mass
Symbol
Name
40
91.224
Zr
Zirconium
#
Mass
Symbol
Name
41
92.90638
Nb
Niobium
#
Mass
Symbol
Name
42
95.94
Mo
Molybdenum
#
Mass
Symbol
Name
43
98
Tc
Technetium
#
Mass
Symbol
Name
44
101.07
Ru
Ruthenium
#
Mass
Symbol
Name
45
102.9055
Rh
Rhodium
#
Mass
Symbol
Name
46
106.42
Pd
Palladium
#
Mass
Symbol
Name
47
107.8682
Ag
Silver
#
Mass
Symbol
Name
48
112.411
Cd
Cadmium
#
Mass
Symbol
Name
49
114.818
In
Indium
#
Mass
Symbol
Name
50
118.71
Sn
Tin
#
Mass
Symbol
Name
51
121.76
Sb
Antimony
#
Mass
Symbol
Name
52
127.6
Te
Tellurium
#
Mass
Symbol
Name
53
126.90447
I
Iodine
#
Mass
Symbol
Name
54
131.293
Xe
Xenon
#
Mass
Symbol
Name
55
132.90545
Cs
Cesium
#
Mass
Symbol
Name
56
137.327
Ba
Barium
#
Mass
Symbol
Name
57
138.9055
La
Lanthanum
#
Mass
Symbol
Name
58
140.116
Ce
Cerium
#
Mass
Symbol
Name
59
140.90765
Pr
Praseodymium
#
Mass
Symbol
Name
60
144.24
Nd
Neodymium
#
Mass
Symbol
Name
61
145
Pm
Promethium
#
Mass
Symbol
Name
62
150.36
Sm
Samarium
#
Mass
Symbol
Name
63
151.964
Eu
Europium
#
Mass
Symbol
Name
64
157.25
Gd
Gadolinium
#
Mass
Symbol
Name
65
158.92534
Tb
Terbium
#
Mass
Symbol
Name
66
162.5
Dy
Dysprosium
#
Mass
Symbol
Name
67
164.93032
Ho
Holmium
#
Mass
Symbol
Name
68
167.259
Er
Erbium
#
Mass
Symbol
Name
69
168.93421
Tm
Thulium
#
Mass
Symbol
Name
70
173.04
Yb
Ytterbium
#
Mass
Symbol
Name
71
174.967
Lu
Lutetium
#
Mass
Symbol
Name
72
178.49
Hf
Hafnium
#
Mass
Symbol
Name
73
180.9479
Ta
Tantalum
#
Mass
Symbol
Name
74
183.84
W
Tungsten
#
Mass
Symbol
Name
75
186.207
Re
Rhenium
#
Mass
Symbol
Name
76
190.23
Os
Osmium
#
Mass
Symbol
Name
77
192.217
Ir
Iridium
#
Mass
Symbol
Name
78
195.078
Pt
Platinum
#
Mass
Symbol
Name
79
196.96655
Au
Gold
#
Mass
Symbol
Name
80
200.59
Hg
Mercury
#
Mass
Symbol
Name
81
204.3833
Tl
Thallium
#
Mass
Symbol
Name
82
207.2
Pb
Lead
#
Mass
Symbol
Name
83
208.98038
Bi
Bismuth
#
Mass
Symbol
Name
84
209
Po
Polonium
#
Mass
Symbol
Name
85
210
At
Astatine
#
Mass
Symbol
Name
86
222
Rn
Radon
#
Mass
Symbol
Name
87
223
Fr
Francium
#
Mass
Symbol
Name
88
226
Ra
Radium
#
Mass
Symbol
Name
89
227
Ac
Actinium
#
Mass
Symbol
Name
90
232.0381
Th
Thorium
#
Mass
Symbol
Name
91
231.03588
Pa
Protactinium
#
Mass
Symbol
Name
92
238.02891
U
Uranium
#
Mass
Symbol
Name
93
237
Np
Neptunium
#
Mass
Symbol
Name
94
244
Pu
Plutonium
#
Mass
Symbol
Name
95
243
Am
Americium
#
Mass
Symbol
Name
96
247
Cm
Curium
#
Mass
Symbol
Name
97
247
Bk
Berkelium
#
Mass
Symbol
Name
98
251
Cf
Californium
#
Mass
Symbol
Name
99
252
Es
Einsteinium
#
Mass
Symbol
Name
100
257
Fm
Fermium
#
Mass
Symbol
Name
101
258
Md
Mendelevium
#
Mass
Symbol
Name
102
259
No
Nobelium
#
Mass
Symbol
Name
103
262
Lr
Lawrencium
#
Mass
Symbol
Name
104
261
Rf
Rutherfordium
#
Mass
Symbol
Name
105
262
Db
Dubnium
#
Mass
Symbol
Name
106
266
Sg
Seaborgium
#
Mass
Symbol
Name
107
264
Bh
Bohrium
#
Mass
Symbol
Name
108
277
Hs
Hassium
#
Mass
Symbol
Name
109
278
Mt
Meitnerium
#
Mass
Symbol
Name
110
281
Ds
Darmstadtium
#
Mass
Symbol
Name
111
272
Rg
Roentgenium
#
Mass
Symbol
Name
112
285
Uub
Ununbium
#
Mass
Symbol
Name
113
284
Uut
Ununtrium
#
Mass
Symbol
Name
114
289
Uuq
Ununquadium
#
Mass
Symbol
Name
115
288
Uup
Ununpentium
#
Mass
Symbol
Name
116
292
Uuh
Ununhexium
#
Mass
Symbol
Name
117
Uus
Ununseptium
#
Mass
Symbol
Name
118
294
Uuo
Ununoctium