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What are the percentages of elements comprising the Earth's crust?

Answer:
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The Earth's crust consists of the following elements and percentages:
  1. Oxygen--47%
  2. Silicon--28%
  3. Aluminum--8%
  4. Iron--5%
  5. Calcium--4%
  6. Sodium--3%
  7. Potassium--3%
  8. Magnesium--2%
  9. Titanium--0.5%
  10. All others--<1%
First answer by Jones1rocks. Last edit by Jones1rocks. Contributor trust: 1566 [recommend contributor recommended]. Question popularity: 49 [recommend question].