Abundance of elements in Earth's crust

What are the most abundant elements in the Earth's crust, according to www.daviddarling.info
Quiz by AlexanderQ
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Last updated: March 9, 2017
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First submittedMarch 9, 2017
Times taken60
Average score53.3%
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Rank
Element
1
Oxygen
2
Silicon
3
Aluminium
4
Iron
5
Calcium
Rank
Element
6
Sodium
7
Potassium
8
Magnesium
9
Titanium
10
Hydrogen
Rank
Element
11
Phosphorus
12
Manganese
13
Fluorine
14
Barium
15
Sulfur
+1
Level 72
Mar 9, 2017
Aluminum should be accepted.
+1
Level 89
Mar 10, 2017
All right. Added
+1
Level 85
Mar 10, 2017
Could you also accept sulphur?
+1
Level 89
Mar 10, 2017
Done