PERIODIC TABLE OF THE ELEMENTS
Number Element Symbol Weight
1 Hydrogen H 1.0079
2 Helium He 4.00260
3 Lithium Li 6.941
4 Beryllium Be 9.01218
5 Boron B 10.81
6 Carbon C 12.011
7 Nitrogen N 14.0067
8 Oxygen O 15.9994
9 Fluorine F 18.9984
10 Neon Ne 20.179
11 Sodium Na 22.9898
12 Magnesium Mg 24.305
13 Aluminum Al 26.9815
14 Silicon Si 28.0855
15 Phosphorus P 30.9738
16 Sulfur S 32.06
17 Chlorine Cl 35.453
18 Argon Ar 39.948
19 Potassium K 39.0983
20 Calcium Ca 40.078
21 Scandium Sc 44.9579
22 Titanium Ti 47.88
23 Vanadium V 50.9415
24 Chromium Cr 51.996
25 Manganese Mn 54.9380
26 Iron Fe 55.847
27 Cobalt Co 58.9332
28 Nickel Ni 58.69
29 Copper Cu 63.546
30 Zinc Zn 65.38
31 Gallium Ga 69.72
32 Germanium Ge 72.59
33 Arsenic As 74.9216
34 Selenium Se 78.96
35 Bromine Br 79.904
36 Krypton Kr 83.80
37 Rubidium Rb 85.4678
38 Strontium Sr 87.62
39 Yttrium Y 88.9059
40 Zirconium Zr 91.22
41 Niobium Nb 92.9064
42 Molybdenum Mo 95.94
43 Technetium Tc 97.9072
44 Ruthenium Ru 101.07
45 Rhodium Rh 102.9055
46 Palladium Pd 106.42
47 Silver Ag 107.8682
48 Cadmium Cd 112.41
49 Indium In 114.82
50 Tin Sn 118.69
51 Antimony Sb 121.79
52 Tellurium Te 127.60
53 Iodine I 126.9045
54 Xenon Xe 131.29
55 Cesium Cs 132.9054
56 Barium Ba 137.33
Start Lanthanide Series
57 Lanthanum La 138.9055
58 Cerium Ce 140.12
59 Praseodymium Pr 140.9077
60 Neodymium Nd 144.24
61 Promethium Pm 144.9127
62 Samarium Sm 150.36
63 Europium Eu 151.96
64 Gadolinium Gd 157.27
65 Terbium Tb 158.9254
66 Dysprosium Dy 162.50
67 Holmium Ho 164.9304
68 Erbium Er 167.26
69 Thulium Tm 168.9342
70 Ytterbium Yb 172.04
71 Lutetium Lu 174.967
End Lanthaniae Series
72 Hafnium Hf 178.49
73 Tantalum Ta 180.9479
74 Tungsten W 183.85
75 Rhenium Re 186.207
76 Osmium Os 190.2
77 Iridium Ir 192.22
78 Platinum Pt 195.08
79 Gold Au 196.9665
80 Mercury Hg 200.59
81 Thallium Tl 204.383
82 Lead Pb 207.2
83 Bismuth Bi 208.9804
84 Polonium Po 208.9824
85 Astatine At 209.9871
86 Radon Rn 222.0176
87 Francium Fr 223.0197
88 Radium Ra 226.0254
Start Actinide Series
89 Actinium Ac 227.0278
90 Thorium Th 232.0381
91 Protactinium Pa 231.0359
92 Uranium U 238.0289
93 Neptunium Np 237.0482
94 Plutonium Pu 244.0642
95 Americium Am 243.0614
96 Curium Cm 247.0703
97 Berkelium Bk 247.0703
98 Californium Cf 251.0796
99 Einsteinium Es 252.083
100 Fermium Fm 257.0951
101 Mendelevium Md 258.10
102 Nobelium No 259.1009
103 Lawrencium Lr 262.11
End Actinide Series
104 Unnilquadium Unq 261.11
(Rutherfodium) (Rf)*
105 Unnilpentium Unp 262.114
(Dubnium) (Db)*
106 Unnilhexium Unh 263.118
(Seaborgium) (Sg)*
107 Unnilseptium Uns 262.12
(Bohrium) (Bh)*
108 Unniloctium Uno ?
(Hassium) (Hs)*
109 Unnilennium Une ?
(Meitnerium) (Mt)*
110 (unnamed)** ?
111 (unnamed)*** ?
112 (unnamed)*** 277
113 (under construction)***
114 (under construction)***