1. H

    1
    1.008
    Hydrogen

  2. He

    2
    4.002
    Helium

  3. Li

    3
    6.94
    Lithium

  4. Be

    4
    9.012
    Beryllium

  5. B

    5
    10.81
    Boron

  6. C

    6
    12.01
    Carbon

  7. N

    7
    14.00
    Nitrogen

  8. O

    8
    15.99
    Oxygen

  9. F

    9
    18.99
    Fluorine

  10. Ne

    10
    20.17
    Neon

  11. Na

    11
    22.98
    Sodium

  12. Mg

    12
    24.30
    Magnesium

  13. Al

    13
    26.98
    Aluminum

  14. Si

    14
    28.08
    Silicon

  15. P

    15
    30.97
    Phosphorus

  16. S

    16
    32.06
    Sulfur

  17. Cl

    17
    35.45
    Chlorine

  18. Ar

    18
    39.94
    Argon

  19. K

    19
    39.09
    Potassium

  20. Ca

    20
    40.07
    Calcium

  21. Sc

    21
    44.95
    Scandium

  22. Ti

    22
    47.86
    Titanium

  23. V

    23
    50.94
    Vanadium

  24. Cr

    24
    51.99
    Chromium

  25. Mn

    25
    54.93
    Manganese

  26. Fe

    26
    55.84
    Iron

  27. Co

    27
    58.93
    Cobalt

  28. Ni

    28
    58.69
    Nickel

  29. Cu

    29
    63.54
    Copper

  30. Zn

    30
    65.38
    Zinc

  31. Ga

    31
    69.72
    Gallium

  32. Ge

    32
    72.63
    Germanium

  33. As

    33
    74.92
    Arsenic

  34. Se

    34
    78.97
    Selenium

  35. Br

    35
    79.90
    Bromine

  36. Kr

    36
    83.79
    Krypton

  37. Rb

    37
    85.46
    Rubidium

  38. Sr

    38
    87.62
    Strontium

  39. Y

    39
    88.90
    Yttrium

  40. Zr

    40
    91.22
    Zirconium

  41. Nb

    41
    92.90
    Niobium

  42. Mo

    42
    95.95
    Molybdenum

  43. Tc

    43
    97.90
    Technetium

  44. Ru

    44
    101.0
    Ruthenium

  45. Rh

    45
    102.9
    Rhodium

  46. Pd

    46
    106.4
    Palladium

  47. Ag

    47
    107.8
    Silver

  48. Cd

    48
    112.4
    Cadmium

  49. In

    49
    114.8
    Indium

  50. Sn

    50
    118.7
    Tin

  51. Sb

    51
    121.7
    Antimony

  52. Te

    52
    127.6
    Tellurium

  53. I

    53
    126.9
    Iodine

  54. Xe

    54
    131.2
    Xenon

  55. Cs

    55
    132.9
    Cesium

  56. Ba

    56
    137.3
    Barium

  57. La

    57
    138.9
    Lanthanum

  58. Ce

    58
    140.1
    Cerium

  59. Pr

    59
    140.9
    Praseodymium

  60. Nd

    60
    144.2
    Neodymium

  61. Pm

    61
    144.9
    Promethium

  62. Sm

    62
    150.3
    Samarium

  63. Eu

    63
    151.9
    Europium

  64. Gd

    64
    157.2
    Gadolinium

  65. Tb

    65
    158.9
    Terbium

  66. Dy

    66
    162.5
    Dysprosium

  67. Ho

    67
    164.9
    Holmium

  68. Er

    68
    167.2
    Erbium

  69. Tm

    69
    168.9
    Thulium

  70. Yb

    70
    173.0
    Ytterbium

  71. Lu

    71
    174.9
    Lutetium

  72. Hf

    72
    178.4
    Hafnium

  73. Ta

    73
    180.9
    Tantalum

  74. W

    74
    183.8
    Tungsten

  75. Re

    75
    186.2
    Rhenium

  76. Os

    76
    190.2
    Osmium

  77. Ir

    77
    192.2
    Iridium

  78. Pt

    78
    195.0
    Platinum

  79. Au

    79
    196.9
    Gold

  80. Hg

    80
    200.5
    Mercury

  81. Tl

    81
    204.3
    Thallium

  82. Pb

    82
    207.2
    Lead

  83. Bi

    83
    208.9
    Bismuth

  84. Po

    84
    209
    Polonium

  85. At

    85
    210
    Astatine

  86. Rn

    86
    222
    Radon

  87. Fr

    87
    223
    Francium

  88. Ra

    88
    226
    Radium

  89. Ac

    89
    227
    Actinium

  90. Th

    90
    232.0
    Thorium

  91. Pa

    91
    231.0
    Protactinium

  92. U

    92
    238.0
    Uranium

  93. Np

    93
    237
    Neptunium

  94. Pu

    94
    244
    Plutonium

  95. Am

    95
    243
    Americium

  96. Cm

    96
    247
    Curium

  97. Bk

    97
    247
    Berkelium

  98. Cf

    98
    251
    Californium

  99. Es

    99
    252
    Einsteinium

  100. Fm

    100
    257
    Fermium

  101. Md

    101
    258
    Mendelevium

  102. No

    102
    259
    Nobelium

  103. Lr

    103
    262
    Lawrencium

  104. Rf

    104
    267
    Rutherfordium

  105. Db

    105
    268
    Dubnium

  106. Sg

    106
    271
    Seaborgium

  107. Bh

    107
    274
    Bohrium

  108. Hs

    108
    269
    Hassium

  109. Mt

    109
    276
    Meitnerium

  110. Ds

    110
    281
    Darmstadtium

  111. Rg

    111
    281
    Roentgenium

  112. Cn

    112
    285
    Copernicium

  113. Nh

    113
    286
    Nihonium

  114. Fl

    114
    289
    Flerovium

  115. Mc

    115
    288
    Moscovium

  116. Lv

    116
    293
    Livermorium

  117. Ts

    117
    294
    Tennessine

  118. Og

    118
    294
    Oganesson
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