%weight of element Flashcards
1
Q
Hydrogen
A
Earth’s crust: 0.14
Human body: 0.5
2
Q
Magnesium
A
Earth’s crust: 2.1
Human body: 0.1
3
Q
Silicon
A
Earth’s crust: 27.7
Human body: negligible
4
Q
Carbon
A
Earth’s crust: 0.03
Human body: 18.5
5
Q
Calcium
A
Earth’s crust: 3.6
Human body: 1.5
6
Q
Oxygen
A
Earth’s crust: 46.6
Human body: 65.0
7
Q
Sodium
A
Earth’s crust: 2.8
Human body: 0.2
8
Q
Nitrogen
A
Earth’s crust: very little
Human body: 3.3
9
Q
Sulphur
A
Earth’s crust: 0.03
Human body: 0.3
