1. Hydrogen (H) - 1.008
2. Helium (He) - 4.0026
3. Lithium (Li) - 6.94
4. Beryllium (Be) - 9.0122
5. Boron (B) - 10.81
6. Carbon (C) - 12.011
7. Nitrogen (N) - 14.007
8. Oxygen (O) - 15.999
9. Fluorine (F) - 18.998
10. Neon (Ne) - 20.180
11. Sodium (Na) - 22.990
12. Magnesium (Mg) - 24.305
13. Aluminum (Al) - 26.982
14. Silicon (Si) - 28.085
15. Phosphorus (P) - 30.974
16. Sulfur (S) - 32.06
17. Chlorine (Cl) - 35.45
18. Argon (Ar) - 39.948
19. Potassium (K) - 39.098
20. Calcium (Ca) - 40.078
21. Scandium (Sc) - 44.956
22. Titanium (Ti) - 47.867
23. Vanadium (V) - 50.942
24. Chromium (Cr) - 51.996
25. Manganese (Mn) - 54.938
26. Iron (Fe) - 55.845
27. Cobalt (Co) - 58.933
28. Nickel (Ni) - 58.693
29. Copper (Cu) - 63.546
30. Zinc (Zn) - 65.38
31. Gallium (Ga) - 69.723
32. Germanium (Ge) - 72.630
33. Arsenic (As) - 74.922
34. Selenium (Se) - 78.971
35. Bromine (Br) - 79.904
36. Krypton (Kr) - 83.798
37. Rubidium (Rb) - 85.468
38. Strontium (Sr) - 87.62
39. Yttrium (Y) - 88.906
40. Zirconium (Zr) - 91.224
41. Niobium (Nb) - 92.906
42. Molybdenum (Mo) - 95.95
43. Technetium (Tc) - [98]
44. Ruthenium (Ru) - 101.07
45. Rhodium (Rh) - 102.91
46. Palladium (Pd) - 106.42
47. Silver (Ag) - 107.87
48. Cadmium (Cd) - 112.41
49. Indium (In) - 114.82
50. Tin (Sn) - 118.71
51. Antimony (Sb) - 121.76
52. Tellurium (Te) - 127.60
53. Iodine (I) - 126.90
54. Xenon (Xe) - 131.29
55. Cesium (Cs) - 132.91
56. Barium (Ba) - 137.33
57. Lanthanum (La) - 138.91
58. Cerium (Ce) - 140.12
59. Praseodymium (Pr) - 140.91
60. Neodymium (Nd) - 144.24
61. Promethium (Pm) - [145]
62. Samarium (Sm) - 150.36
63. Europium (Eu) - 151.96
64. Gadolinium (Gd) - 157.25
65. Terbium (Tb) - 158.93
66. Dysprosium (Dy) - 162.50
67. Holmium (Ho) - 164.93
68. Erbium (Er) - 167.26
69. Thulium (Tm) - 168.93
70. Ytterbium (Yb) - 173.05
71. Lutetium (Lu) - 174.97
72. Hafnium (Hf) - 178.49
73. Tantalum (Ta) - 180.95
74. Tungsten (W) - 183.84
75. Rhenium (Re) - 186.21
76. Osmium (Os) - 190.23
77. Iridium (Ir) - 192.22
78. Platinum (Pt) - 195.08
79. Gold (Au) - 196.97
80. Mercury (Hg) - 200.59
81. Thallium (Tl) - 204.38
82. Lead (Pb) - 207.2
83. Bismuth (Bi) - 208.98
84. Polonium (Po) - [209]
85. Astatine (At) - [210]
86. Radon (Rn) - [222]
87. Francium (Fr) - [223]
88. Radium (Ra) - [226]
89. Actinium (Ac) - 227
90. Thorium (Th) - 232.04
91. Protactinium (Pa) - 231.04
92. Uranium (U) - 238.03
93. Neptunium (Np) - [237]
94. Plutonium (Pu) - [244]
95. Americium (Am) - [243]
96. Curium (Cm) - [247]
97. Berkelium (Bk) - [247]
98. Californium (Cf) - [251]
99. Einsteinium (Es) - [252]
100. Fermium (Fm) - [257]
101. Mendelevium (Md) - [258]
102. Nobelium (No) - [259]
103. Lawrencium (Lr) - [262]
104. Rutherfordium (Rf) - [267]
105. Dubnium (Db) - [270]
106. Seaborgium (Sg) - [271]
107. Bohrium (Bh) - [270]
108. Hassium (Hs) - [277]
109. Meitnerium (Mt) - [278]
110. Darmstadtium (Ds) - [281]
111. Roentgenium (Rg) - [282]
112. Copernicium (Cn) - [285]
113. Nihonium (Nh) - [286]
114. Flerovium (Fl) - [289]
115. Moscovium (Mc) - [290]
116. Livermorium (Lv) - [293]
117. Tennessine (Ts) - [294]
118. Oganesson (Og) - [294]
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