No:Symbol:Name:Atomic Wt:Isotopes:
1:H:Hydrogen:1.00794:7:
2:He:Helium:4.002602:2:
3:Li:Lithium:[6.941]:2:
4:Be:Beryllium:9.012182:3:
5:B:Boron:10.811:7:
6:C:Carbon:12.0107:8:
7:N:Nitrogen:14.0067:2:
8:O:Oxygen:15.9994:3:
9:F:Fluorine:18.9984032:5:
10:Ne:Neon:20.1797:6:
11:Na:Sodium:22.989770:2:
12:Mg:Magnesium:24.3050:6:
13:Al:Aluminium:26.981538:2:
14:Si:Silicon:28.0855:3:
15:P:Phosphorus:30.973761:2:
16:S:Sulfur:32.065:5:
17:Cl:Chlorine:35.453:2:
18:Ar:Argon:39.948:1:
19:K:Potassium:39.0983:1:
20:Ca:Calcium:40.078:4:
21:Sc:Scandium:44.955910:8:
22:Ti:Titanium:47.867:1:
23:V:Vanadium:50.9415:1:
24:Cr:Chromium:51.9961:6:
25:Mn:Manganese:54.938049:9:
26:Fe:Iron:55.845:2:
27:Co:Cobalt:58.933200:9:
28:Ni:Nickel:58.6934:2:
29:Cu:Copper:63.546:3:
30:Zn:Zinc:65.409:4:
31:Ga:Gallium:69.723:1:
32:Ge:Germanium:72.64:1:
33:As:Arsenic:74.92160:2:
34:Se:Selenium:78.96:3:
35:Br:Bromine:79.904:1:
36:Kr:Krypton:83.798:2:
37:Rb:Rubidium:85.4678:3:
38:Sr:Strontium:87.62:1:
39:Y:Yttrium:88.90585:2:
40:Zr:Zirconium:91.224:2:
41:Nb:Niobium:92.90638:2:
42:Mo:Molybdenum:95.94:2:
43:Tc:Technetium:[98]::
44:Ru:Ruthenium:101.07:2:
45:Rh:Rhodium:102.90550:2:
46:Pd:Palladium:106.42:1:
47:Ag:Silver:107.8682:2:
48:Cd:Cadmium:112.411:8:
49:In:Indium:114.818:3:
50:Sn:Tin:118.710:7:
51:Sb:Antimony:121.760:1:
52:Te:Tellurium:127.60:3:
53:I:Iodine:126.90447:3:
54:Xe:Xenon:131.293:6:
55:Cs:Caesium:132.90545:2:
56:Ba:Barium:137.327:7:
57:La:Lanthanum:138.9055:2:
58:Ce:Cerium:140.116:1:
59:Pr:Praseodymium:140.90765:2:
60:Nd:Neodymium:144.24:3:
61:Pm:Promethium:[145]::
62:Sm:Samarium:150.36:3:
63:Eu:Europium:151.964:1:
64:Gd:Gadolinium:157.25:3:
65:Tb:Terbium:158.92534:2:
66:Dy:Dysprosium:162.500:1:
67:Ho:Holmium:164.93032:2:
68:Er:Erbium:167.259:3:
69:Tm:Thulium:168.93421:2:
70:Yb:Ytterbium:173.04:3:
71:Lu:Lutetium:174.967:1:
72:Hf:Hafnium:178.49:2:
73:Ta:Tantalum:180.9479:1:
74:W:Tungsten:183.84:1:
75:Re:Rhenium:186.207:1:
76:Os:Osmium:190.23:3:
77:Ir:Iridium:192.217:3:
78:Pt:Platinum:195.078:2:
79:Au:Gold:196.96655:2:
80:Hg:Mercury:200.59:2:
81:Tl:Thallium:204.3833:2:
82:Pb:Lead:207.2:1:
83:Bi:Bismuth:208.98038:2:
84:Po:Polonium:[209]::
85:At:Astatine:[210]::
86:Rn:Radon:[222]::
87:Fr:Francium:[223]::
88:Ra:Radium:[226]::
89:Ac:Actinium:[227]::
90:Th:Thorium:232.0381:1:
91:Pa:Protactinium:231.03588:2:
92:U:Uranium:238.02891:3:
93:Np:Neptunium:[237]::
94:Pu:Plutonium:[244]::
95:Am:Americium:[243]::
96:Cm:Curium:[247]::
97:Bk:Berkelium:[247]::
98:Cf:Californium:[251]::
99:Es:Einsteinium:[252]::
100:Fm:Fermium:[257]::
101:Md:Mendelevium:[258]::
102:No:Nobelium:[259]::
103:Lr:Lawrencium:[262]::
104:Rf:Rutherfordium:[261]::
105:Db:Dubnium:[262]::
106:Sg:Seaborgium:[266]::
107:Bh:Bohrium:[264]::
108:Hs:Hassium:[277]::
109:Mt:Meitnerium:[268]::
110:Ds:Darmstadtium:[281]::
111:Rg:Roentgenium:[272]::
112:Uub:Ununbium:[285]::
114:Uuq:Ununquadium:[289]::
115:Uup:Ununpentium:::
116:Uuh:Ununhexium:::
117:Uus:Ununseptium:::
118:Uuo:Ununoctium:::