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Element List by Atomic Weight
 Element Name   Atomic Weight   Symbol   Atomic Number 
 Hydrogen 1.00794 H 1
 Helium 4.0026 He 2
 Lithium 6.941 Li 3
 Beryllium 9.01218 Be 4
 Boron 10.811 B 5
 Carbon 12.011 C 6
 Nitrogen 14.0067 N 7
 Oxygen 15.9994 O 8
 Fluorine 18.9984 F 9
 Neon 20.1797 Ne 10
 Sodium 22.9898 Na 11
 Magnesium 24.305 Mg 12
 Aluminum 26.9815 Al 13
 Silicon 28.0855 Si 14
 Phosphorus 30.9738 P 15
 Sulfur 32.066 S 16
 Chlorine 35.4527 Cl 17
 Potassium 39.0983 K 19
 Argon 39.948 Ar 18
 Calcium 40.078 Ca 20
 Scandium 44.9559 Sc 21
 Titanium 47.867 Ti 22
 Vanadium 50.9415 V 23
 Chromium 51.9961 Cr 24
 Manganese 54.938 Mn 25
 Iron 55.845 Fe 26
 Nickel 58.6934 Ni 28
 Cobalt 58.9332 Co 27
 Copper 63.546 Cu 29
 Zinc 65.39 Zn 30
 Gallium 69.723 Ga 31
 Germanium 72.61 Ge 32
 Arsenic 74.9216 As 33
 Selenium 78.96 Se 34
 Bromine 79.904 Br 35
 Krypton 83.8 Kr 36
 Rubidium 85.4678 Rb 37
 Strontium 87.62 Sr 38
 Yttrium 88.9059 Y 39
 Zirconium 91.224 Zr 40
 Niobium 92.9064 Nb 41
 Molybdenum 95.94 Mo 42
 Technetium [98] Tc 43
 Ruthenium 101.07 Ru 44
 Rhodium 102.906 Rh 45
 Palladium 106.42 Pd 46
 Silver 107.868 Ag 47
 Cadmium 112.411 Cd 48
 Indium 114.818 In 49
 Tin 118.71 Sn 50
 Antimony 121.76 Sb 51
 Iodine 126.904 I 53
 Tellurium 127.6 Te 52
 Xenon 131.29 Xe 54
 Cesium 132.905 Cs 55
 Barium 137.327 Ba 56
 Lanthanum 138.906 La 57
 Cerium 140.115 Ce 58
 Praseodymium 140.908 Pr 59
 Neodymium 144.24 Nd 60
 Promethium [145] Pm 61
 Samarium 150.36 Sm 62
 Europium 151.965 Eu 63
 Gadolinium 157.25 Gd 64
 Terbium 158.925 Tb 65
 Dysprosium 162.5 Dy 66
 Holmium 164.93 Ho 67
 Erbium 167.26 Er 68
 Thulium 168.934 Tm 69
 Ytterbium 173.04 Yb 70
 Lutetium 174.967 Lu 71
 Hafnium 178.49 Hf 72
 Tantalum 180.948 Ta 73
 Tungsten 183.84 W 74
 Rhenium 186.207 Re 75
 Osmium 190.23 Os 76
 Iridium 192.217 Ir 77
 Platinum 195.08 Pt 78
 Gold 196.967 Au 79
 Mercury 200.59 Hg 80
 Thallium 204.383 Tl 81
 Lead 207.2 Pb 82
 Bismuth 208.98 Bi 83
 Polonium [209] Po 84
 Astatine [210] At 85
 Radon [222] Rn 86
 Francium [223] Fr 87
 Radium [226] Ra 88
 Actinium [227] Ac 89
 Protactinium 231.036 Pa 91
 Thorium 232.038 Th 90
 Neptunium [237] Np 93
 Uranium 238.029 U 92
 Americium [243] Am 95
 Plutonium [244] Pu 94
 Curium [247] Cm 96
 Berkelium [247] Bk 97
 Californium [251] Cf 98
 Einsteinium [252] Es 99
 Fermium [257] Fm 100
 Mendelevium [258] Md 101
 Nobelium [259] No 102
 Rutherfordium [261] Rf 104
 Lawrencium [262] Lr 103
 Dubnium [262] Db 105
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