Most Abundant Elements in Earth's Crust
The top 15 most abundant chemical elements in Earth's continental crust by percentage of mass. Oxygen dominates at 46%, and the top 8 elements account for over 98% of the crust's total mass.
Data
| # | Element | Symbol | Atomic Number | % by Mass |
|---|---|---|---|---|
| 1 | Oxygen | O | 8 | 46.0% |
| 2 | Silicon | Si | 14 | 28.0% |
| 3 | Aluminium | Al | 13 | 8.2% |
| 4 | Iron | Fe | 26 | 5.6% |
| 5 | Calcium | Ca | 20 | 4.1% |
| 6 | Sodium | Na | 11 | 2.4% |
| 7 | Magnesium | Mg | 12 | 2.3% |
| 8 | Potassium | K | 19 | 2.1% |
| 9 | Titanium | Ti | 22 | 0.56% |
| 10 | Hydrogen | H | 1 | 0.14% |
| 11 | Phosphorus | P | 15 | 0.10% |
| 12 | Manganese | Mn | 25 | 0.09% |
| 13 | Fluorine | F | 9 | 0.06% |
| 14 | Barium | Ba | 56 | 0.05% |
| 15 | Strontium | Sr | 38 | 0.04% |
Source: Wikipedia — Abundance of elements in Earth's crust. Values represent average continental crust composition by mass percentage.