10 Most Abundant Elements in Earth's Crust

Guess the 10 most abundant elements found in the Earth's crust.

According to https://en.wikipedia.org/wiki/Abundance_of_elements_in_Earth%27s_crust

Also according to https://periodictable.com/Properties/A/CrustAbundance.html

Only Earth's crust.

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Last updated: February 19, 2020

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First submitted	February 19, 2020
Times taken	42
Average score	70.0%
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Abundance	Element
46%	Oxygen
27%	Silicon
8.1%	Aluminum
6.3%	Iron
5%	Calcium

Abundance	Element
2.9%	Magnesium
2.3%	Sodium
1.5%	Potassium
0.66%	Titanium
0.18%	Carbon

Level 75

Feb 19, 2020

Aluminium is missing the second "i".

Level 42

Feb 21, 2020

Aluminium is an alternate spelling of Aluminum, and can be used as a type-in. The reason I spelled it Aluminum is because that is how I spell it, but you can still put in Aluminium and it would be a correct answer.