Earth Crust
1
H
Hydrogen
0.15%
2
He
Helium
5.5•10
-7
%
3
Li
Lithium
0.0017%
4
Be
Beryllium
0.00019%
5
B
Boron
0.00086%
6
C
Carbon
0.18%
7
N
Nitrogen
0.002%
8
O
Oxygen
46%
9
F
Fluorine
46%
10
Ne
Neon
46%
11
Na
Sodium
2.30%
12
Mg
Magnesium
2.90%
13
Al
Aluminium
8.10%
14
Si
Silicon
27.00%
15
P
Phosphorus
8.10%
16
S
Sulphur
0.04%
17
Cl
Chlorine
0.02%
18
Ar
Argon
0.00015%
19
K
Potassium
1.50%
20
Ca
Calcium
5.00%
21
Sc
Scandium
0.0026%
22
Ti
Titanium
0.66%
23
V
Vanadium
0.02%
24
Cr
Chromium
0.01%
25
Mn
Manganese
0.11%
26
Fe
Iron
0.01%
27
Co
Cobalt
0.003%
28
Ni
Nickel
0.01%
29
Cu
Copper
0.01%
30
Zn
Zinc
0.01%
31
Ga
Galium
0.0019%
32
Ge
Germanium
0.00014%
33
As
Arsenic
0.00021%
34
Se
Selenium
5•10
-6
%
35
Br
Bromine
0.0003%
36
Kr
Krypton
1.5•10
-8
%
37
Rb
Rubidium
0.01%
38
Sr
Strontium
0.04%
39
Y
Yttrium
0.00019%
40
Zr
Zirconium
0.00066%
41
Nb
Niobium
0.00002%
42
Mo
Molybdenum
0.00012%
44
Ru
Ruthenium
10
-7
%
45
Rh
Rhodium
7•10
-8
%
46
Pd
Palladium
6.3•10
-7
%
47
Ag
Silver
7.9•10
-6
%
48
Cd
Cadmium
6.3•10
-7
%
49
In
Indium
0.00002%
50
Sn
Tin
0.00022%
51
Sb
Antimony
0.00002%
52
Te
Tellurium
10
-7
%
53
I
Iodine
0.00005%
54
Xe
Xenon
2•10
-9
%
55
Cs
Caesium
0.00019%
56
Ba
Barium
0.03%
57
La
Lanthanum
0.0034%
58
Ce
Cerium
0.006%
59
Pr
Praseodymium
0.00086%
60
Nd
Neodymium
0.00330%
62
Sm
Samarium
0.0006%
63
Eu
Europium
0.00018%
64
Gd
Gadolinium
0.00052%
65
Tb
Terbium
0.00009%
66
Dy
Dysprosium
0.00062%
67
Ho
Holmium
0.00012%
68
Er
Erbium
0.0003%
69
Tm
Thulium
0.00005%
70
Yb
Ytterbium
0.00028%
71
Lu
Lutetium
0.00006%
72
Hf
Hafnium
0.00033%
73
Ta
Tantalum
0.00017%
74
W
Tungsten
0.00011%
75
Re
Rhenium
2.6•10
-7
%
76
Os
Osmium
1.8•10
-7
%
77
Ir
Iridium
4•10
-8
%
78
Pt
Platinum
3.7•10
-6
%
79
Au
Gold
3.7•10
-6
%
80
Hg
Mercury
6.7•10
-6
%
81
Tl
Thallium
0.00005%
82
Pb
Lead
0.001%
83
Bi
Bismuth
2.5•10
-6
%
84
Po
Polonium
86
Rn
Radon
90
Th
Thorium
0.0006%
91
Pa
Protactinium
0.0006%
92
U
Uranium
0.00018%