Periodic Table
of the
Elements
Ia 0
  1  
  H  
Hydrogen

1.0079
IIaIIIaIVaVaVIaVIIa  2  
He
Helium

4.0026
  3  
Li
Lithium

6.941
  4  
Be
Beryllium

9.0122
     5  
B
Boron

10.811
  6  
C
Carbon

12.011
  7  
N
Nitrogen

14.0067
  8  
O
Oxygen

15.9994
  9  
F
Fluorine

18.9984
10
Ne
Neon

20.179
11
Na
Sodium

22.9898
12
Mg
Magnesium

24.305
IIIb IVbVbVIbVIIb________VIII________IbIIb13
Al
Aluminum

26.9815
14
Si
Silicon

28.086
15
P
Phosphorus

30.9738
16
S
Sulfur

32.066
17
Cl
Chlorine

35.453
18
Ar
Argon

39.948
19
K
Potassium

39.098
20
Ca
Calcium

40.078
21
Sc
Scandium

44.956
 22
Ti
Titanium

47.90
23
V
Vanadium

50.941
24
Cr
Chromium

51.996
25
Mn
Manganese

54.938
26
Fe
Iron

55.847
27
Co
Cobalt

58.933
28
Ni
Nickel

58.71
29
Cu
Copper

63.546
30
Zn
Zinc

65.38
31
Ga
Gallium

69.72
32
Ge
Germanium

72.59
33
As
Arsenic

74.922
34
Se
Selenium

78.96
35
Br
Bromine

79.904
36
Kr
Krypton

83.80
37
Rb
Rubidium

85.468
38
Sr
Strontium

87.62
39
Y
Yttrium

88.906
 40
Zr
Zirconium

91.22
41
Nb
Niobium

92.906
42
Mo
Molybdenum

95.94
43
Tc
Technetium
44
Ru
Ruthenium

101.07
45
Rh
Rhodium

102.906
46
Pd
Palladium

106.4
47
Ag
Silver

107.868
48
Cd
Cadmium

112.40
49
In
Indium

114.82
50
Sn
Tin

118.69
51
Sb
Antimony

121.75
52
Te
Tellurium

127.60
53
I
Iodine

126.905
54
Xe
Xenon

131.30
55
Cs
Cesium

132.905
56
Ba
Barium

137.34
57
La
Lanthanum

138.906
 72
Hf
Hafnium

178.49
73
Ta
Tantalum

180.948
74
W
Tungsten

183.85
75
Re
Rhenium

186.2
76
Os
Osmium

190.2
77
Ir
Iridium

192.22
78
Pt
Platinum

195.09
79
Au
Gold

196.967
80
Hg
Mercury

200.59
81
Tl
Thallium

204.37
82
Pb
Lead

207.2
83
Bi
Bismuth

208.98
84
Po
Polonium
85
At
Astatine
86
Rn
Radon
87
Fr
Francium
88
Ra
Radium

226.03
89
Ac
Actinium

227.03
  104
Rf
Rutherfordium
105
Db
Dubnium
106
Sg
Seaborgium
107
Bh
Bohrium
108
Hs
Hassium
109
Mt
Meitnerium
110
Ds
Darmstadtium
111
Rg
Roentgenium
112
Cn
Copernicium
113
Nh
Nihonium
114
Fl
Flerovium
115
Mc
Moscovium
116
Lv
Livermorium
117
Ts
Tennessine
118
Og
Oganesson
   
 58-71    
lanthanides 
58
Ce
Cerium

140.12
59
Pr
Praseodymium

140.908
60
Nd
Neodymium

144.24
61
Pm
Promethium
62
Sm
Samarium

150.4
63
Eu
Europium

151.96
64
Gd
Gadolinium

157.25
65
Tb
Terbium

158.92
66
Dy
Dysprosium

162.50
67
Ho
Holmium

164.93
68
Er
Erbium

167.26
69
Tm
Thulium

168.93
70
Yb
Ytterbium

173.04
71
Lu
Lutetium

174.97
 
 90-103    
actinides 
90
Th
Thorium

232.04
91
Pa
Protactinium

231.04
92
U
Uranium

238.03
93
Np
Neptunium
94
Pu
Plutonium
95
Am
Americium
96
Cm
Curium
97
Bk
Berkelium
98
Cf
Californium
99
Es
Einsteinium
100
Fm
Fermium
101
Md
Mendelevium
102
No
Nobelium
103
Lr
Lawrencium
 

   click on the chemical symbol for further data Properties Chart of the Nuclides