534
Appendix 1
Atomic Weights of Elements (Based on 12 C = 12.000)
Atomic Number
Name
Symbol
Atomic Weight
41
Niobium
Nb
92.906
42
Molybdenum
Mo
95.94
43
Technetium
Tc
98.906
44
Ruthenium
Ru
101.07
45
Rhodium
Rh
102.91
46
Palladium
Pd
106.42
47
Silver
Ag
107.87
48
Cadmium
Cd
112.41
49
Indium
In
114.82
50
Tin
Sn
118.71
51
Antimony
Sb
121.76
52
Tellurium
Te
127.60
53
Iodine
I
126.90
54
Xenon
Xe
131.29
55
Cesium
Cs
132.91
56
Barium
Ba
137.33
57
Lanthanum
La
138.91
58
Cerium
Ce
140.12
59
Prasodymium
Pr
140.91
60
Neodymium
Nd
144.24
61
Promethium
Pm
146.92
62
Samarium
Sm
150.36
63
Europium
Eu
151.96
64
Gadolinium
Gd
157.25
65
Terbium
Tb
158.93
66
Dysprosium
Dy
162.50
67
Holmium
Ho
164.93
68
Erbium
Er
167.26
69
Thulium
Tm
168.93
70
Ytterbium
Yb
173.04
71
Lutetium
Lu
174.97
72
Hafnium
Hf
178.49
73
Tantalum
Ta
180.95
74
Tungsten
W
183.84
75
Rhenium
Re
186.21
76
Osmium
Os
190.23
77
Iridium
Ir
192.22
78
Platinum
Pt
195.08
79
Gold
Au
196.97
80
Mercury
Hg
200.59
81
Thallium
Tl
204.38
82
Lead
Pb
207.20
83
Bismuth
Bi
208.98
84
Polonium
Po
209.98
85
Astatine
At
209.99
86
Radon
Rn
222.02