Element name Percentage by weight of the Earths crust Oxygen O 47 Silicon Si 28 Aluminum Al 8 Iron Fe 5 Calcium Ca 35 Sodium Na 3 Potassium K 25 Magnesium Mg ID: 244440
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Slide1
The elements in the SOLID EARTH
Element name
Percentage by weight of the Earth’s crust
Oxygen
(O)
47%
Silicon (Si)
28%
Aluminum (Al)
8%
Iron (Fe)
5%
Calcium (Ca)
3.5%
Sodium (Na)
3%
Potassium (K)
2.5%
Magnesium (Mg)
2%Slide2
The elements in Living Matter
Element
name
Percentage found in any cell
Hydrogen (H)
59%
Oxygen (O)
24%
Carbon (C)
11%
Nitrogen (N)
4%
Others elements combined
2% Slide3
The elements in the ocean
Elements
Percentage
Chloride (
Cl
)
55%
Sodium (Na)
31%
Magnesium (Mg)
7.7%
Sulfur
(S)
3.7%
Calcium (Ca)
1.2%
Other elements combined
1.4%Slide4
Elements in the atmosphere
Elements
Percentage of elements
i
Nitrogen (N)
78.09%
Oxygen (O)
20.9%
Argon
(
Ar
)
0.93%
Carbon dioxide
(CO
2
) –
a compound composed of two types of elements
0.039%