533
Appendix 1
Atomic Weights of Elements (Based on 12 C = 12.000)
Atomic Number
Name
Symbol
Atomic Weight
1
Hydrogen
H
1.0079
2
Helium
He
4.0026
3
Lithium
Li
6.941
4
Beryllium
Be
9.0122
5
Boron
B
10.811
6
Carbon
C
12.011
7
Nitrogen
N
14.007
8
Oxygen
O
15.999
9
Fluorine
F
18.998
10
Neon
Ne
20.180
11
Sodium
Na
22.990
12
Magnesium
Mg
24.305
13
Aluminum
Al
26.982
14
Silicon
Si
28.086
15
Phosphorus
P
30.974
16
Sulfur
S
32.066
17
Chlorine
Cl
35.453
18
Argon
A
39.948
19
Potassium
K
39.098
20
Calcium
Ca
40.078
21
Scandium
Sc
44.956
22
Titanium
Ti
47.867
23
Vanadium
V
50.942
24
Chromium
Cr
51.996
25
Manganese
Mn
54.938
26
Iron
Fe
55.845
27
Cobalt
Co
58.933
28
Nickel
Ni
58.693
29
Copper
Cu
63.546
30
Zinc
Zn
65.392
31
Gallium
Ga
69.723
32
Germanium
Ge
72.612
33
Arsenic
As
74.922
34
Selenium
Se
78.963
35
Bromine
Br
79.904
36
Krypton
Kr
83.80
37
Rubidium
Rb
85.468
38
Strontium
Sr
87.52
39
Yttrium
Y
88.906
40
Zirconium
Zr
91.224
continued