5.01 metals earth crust (unrecom)
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Last updated 1:32 PM on 8/9/24
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4 Terms
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Earth's Crust
The outer layer of the Earth, composed of a mixture of various compounds and elements.
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Native Elements
Elements such as sulfur, silver, platinum, and gold that occur uncombined in nature due to their nonreactive properties.
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Composition of Earth's Crust
Oxygen (45%), Silicon (27%), Aluminum (8%), Iron (6%), Calcium (5%), Magnesium (3%), Sodium (2.5%), Potassium (1.5%), and other metals and non-metals (2%).
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Non-Metals in Earth's Crust
Oxygen and silicon, which make up nearly three-quarters of the Earth's crust.
