Atomic Mass

Atomic                      Atomic     |  Atomic                      Atomic
number  Name        Symbol  Mass       |  number  Name        Symbol  Mass
1       Hydrogen    H       1.0079     |  89      Actinium    Ac      227
2       Helium      He      4.0026     |  13      Aluminum    Al      26.9815
3       Lithium     Li      6.941      |  95      Americium   Am      243
4       Beryllium   Be      9.0122     |  51      Antimony    Sb      121.76
5       Boron       B       10.811     |  18      Argon       Ar      39.948
6       Carbon      C       12.0107    |  33      Arsenic     As      74.9216
7       Nitrogen    N       14.0067    |  85      Astatine    At      210
8       Oxygen      O       15.9994    |  56      Barium      Ba      137.327
9       Fluorine    F       18.9984    |  97      Berkelium   Bk      247
10      Neon        Ne      20.1797    |  4       Beryllium   Be      9.0122
11      Sodium      Na      22.9897    |  83      Bismuth     Bi      208.9804
12      Magnesium   Mg      24.305     |  107     Bohrium     Bh      264
13      Aluminum    Al      26.9815    |  5       Boron       B       10.811
14      Silicon     Si      28.0855    |  35      Bromine     Br      79.904
15      Phosphorus  P       30.9738    |  48      Cadmium     Cd      112.411
16      Sulfur      S       32.065     |  20      Calcium     Ca      40.078
17      Chlorine    Cl      35.453     |  98      Californium Cf      251
19      Potassium   K       39.0983    |  6       Carbon      C       12.0107
18      Argon       Ar      39.948     |  58      Cerium      Ce      140.116
20      Calcium     Ca      40.078     |  55      Cesium      Cs      132.9055
21      Scandium    Sc      44.9559    |  17      Chlorine    Cl      35.453
22      Titanium    Ti      47.867     |  24      Chromium    Cr      51.9961
23      Vanadium    V       50.9415    |  27      Cobalt      Co      58.9332
24      Chromium    Cr      51.9961    |  29      Copper      Cu      63.546
25      Manganese   Mn      54.938     |  96      Curium      Cm      247
26      Iron        Fe      55.845     |  105     Dubnium     Db      262
28      Nickel      Ni      58.6934    |  66      Dysprosium  Dy      162.5
27      Cobalt      Co      58.9332    |  99      Einsteinium Es      252
29      Copper      Cu      63.546     |  68      Erbium      Er      167.259
30      Zinc        Zn      65.39      |  63      Europium    Eu      151.964
31      Gallium     Ga      69.723     |  100     Fermium     Fm      257
32      Germanium   Ge      72.64      |  9       Fluorine    F       18.9984
33      Arsenic     As      74.9216    |  87      Francium    Fr      223
34      Selenium    Se      78.96      |  64      Gadolinium  Gd      157.25
35      Bromine     Br      79.904     |  31      Gallium     Ga      69.723
36      Krypton     Kr      83.8       |  32      Germanium   Ge      72.64
37      Rubidium    Rb      85.4678    |  79      Gold        Au      196.9665
38      Strontium   Sr      87.62      |  72      Hafnium     Hf      178.49
39      Yttrium     Y       88.9059    |  108     Hassium     Hs      277
40      Zirconium   Zr      91.224     |  2       Helium      He      4.0026
41      Niobium     Nb      92.9064    |  67      Holmium     Ho      164.9303
42      Molybdenum  Mo      95.94      |  1       Hydrogen    H       1.0079
43      Technetium  Tc      98         |  49      Indium      In      114.818
44      Ruthenium   Ru      101.07     |  53      Iodine      I       126.9045
45      Rhodium     Rh      102.9055   |  77      Iridium     Ir      192.217
46      Palladium   Pd      106.42     |  26      Iron        Fe      55.845
47      Silver      Ag      107.8682   |  36      Krypton     Kr      83.8
48      Cadmium     Cd      112.411    |  57      Lanthanum   La      138.9055
49      Indium      In      114.818    |  103     Lawrencium  Lr      262
50      Tin         Sn      118.71     |  82      Lead        Pb      207.2
51      Antimony    Sb      121.76     |  3       Lithium     Li      6.941
53      Iodine      I       126.9045   |  71      Lutetium    Lu      174.967
52      Tellurium   Te      127.6      |  12      Magnesium   Mg      24.305
54      Xenon       Xe      131.293    |  25      Manganese   Mn      54.938
55      Cesium      Cs      132.9055   |  109     Meitnerium  Mt      268
56      Barium      Ba      137.327    |  101     Mendelevium Md      258
57      Lanthanum   La      138.9055   |  80      Mercury     Hg      200.59
58      Cerium      Ce      140.116    |  42      Molybdenum  Mo      95.94
59      Praseodymium Pr     140.9077   |  60      Neodymium   Nd      144.24
60      Neodymium   Nd      144.24     |  10      Neon        Ne      20.1797
61      Promethium  Pm      145        |  93      Neptunium   Np      237
62      Samarium    Sm      150.36     |  28      Nickel      Ni      58.6934
63      Europium    Eu      151.964    |  41      Niobium     Nb      92.9064
64      Gadolinium  Gd      157.25     |  7       Nitrogen    N       14.0067
65      Terbium     Tb      158.9253   |  102     Nobelium    No      259
66      Dysprosium  Dy      162.5      |  76      Osmium      Os      190.23
67      Holmium     Ho      164.9303   |  8       Oxygen      O       15.9994
68      Erbium      Er      167.259    |  46      Palladium   Pd      106.42
69      Thulium     Tm      168.9342   |  15      Phosphorus  P       30.9738
70      Ytterbium   Yb      173.04     |  78      Platinum    Pt      195.078
71      Lutetium    Lu      174.967    |  94      Plutonium   Pu      244
72      Hafnium     Hf      178.49     |  84      Polonium    Po      209
73      Tantalum    Ta      180.9479   |  19      Potassium   K       39.0983
74      Tungsten    W       183.84     |  59      Praseodymium Pr     140.9077
75      Rhenium     Re      186.207    |  61      Promethium  Pm      145
76      Osmium      Os      190.23     |  91      Protactinium Pa     231.0359
77      Iridium     Ir      192.217    |  88      Radium      Ra      226
78      Platinum    Pt      195.078    |  86      Radon       Rn      222
79      Gold        Au      196.9665   |  75      Rhenium     Re      186.207
80      Mercury     Hg      200.59     |  45      Rhodium     Rh      102.9055
81      Thallium    Tl      204.3833   |  111     Roentgenium Rg      272
82      Lead        Pb      207.2      |  37      Rubidium    Rb      85.4678
83      Bismuth     Bi      208.9804   |  44      Ruthenium   Ru      101.07
84      Polonium    Po      209        |  104     Rutherfordium Rf    261
85      Astatine    At      210        |  62      Samarium    Sm      150.36
86      Radon       Rn      222        |  21      Scandium    Sc      44.9559
87      Francium    Fr      223        |  106     Seaborgium  Sg      266
88      Radium      Ra      226        |  34      Selenium    Se      78.96
89      Actinium    Ac      227        |  14      Silicon     Si      28.0855
91      Protactinium Pa     231.0359   |  47      Silver      Ag      107.8682
90      Thorium     Th      232.0381   |  11      Sodium      Na      22.9897
93      Neptunium   Np      237        |  38      Strontium   Sr      87.62
92      Uranium     U       238.0289   |  16      Sulfur      S       32.065
95      Americium   Am      243        |  73      Tantalum    Ta      180.9479
94      Plutonium   Pu      244        |  43      Technetium  Tc      98
96      Curium      Cm      247        |  52      Tellurium   Te      127.6
97      Berkelium   Bk      247        |  65      Terbium     Tb      158.9253
98      Californium Cf      251        |  81      Thallium    Tl      204.3833
99      Einsteinium Es      252        |  90      Thorium     Th      232.0381
100     Fermium     Fm      257        |  69      Thulium     Tm      168.9342
101     Mendelevium Md      258        |  50      Tin         Sn      118.71
102     Nobelium    No      259        |  22      Titanium    Ti      47.867
104     Rutherfordium Rf    261        |  74      Tungsten    W       183.84
103     Lawrencium  Lr      262        |  92      Uranium     U       238.0289
105     Dubnium     Db      262        |  23      Vanadium    V       50.9415
107     Bohrium     Bh      264        |  54      Xenon       Xe      131.293
106     Seaborgium  Sg      266        |  70      Ytterbium   Yb      173.04
109     Meitnerium  Mt      268        |  39      Yttrium     Y       88.9059
111     Roentgenium Rg      272        |  30      Zinc        Zn      65.39
108     Hassium     Hs      277        |  40      Zirconium   Zr      91.224