Question

By mass, what percentage of the Earth's crust is made up of just 8 elements?

Answer 1

By mass, the Earth's crust is made up of approximately 99% of just 8 elements. These elements are:

1. Oxygen (O) - 46.6%

2. Silicon (Si) - 27.7%

3. Aluminum (Al) - 8.1%

4. Iron (Fe) - 5.0%

5. Calcium (Ca) - 3.6%

6. Sodium (Na) - 2.8%

7. Potassium (K) - 2.6%

8. Magnesium (Mg) - 2.1%

These elements are the most abundant in the Earth's crust and are known as the "major elements". The remaining 1% of the crust is made up of trace elements, which include elements such as gold, silver, and platinum, among others.

Answer 2

Just 8 elements make up approximately 99% of the Earth's crust by mass. These elements are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. The remaining 1% is made up of trace elements.

Answer 3

By mass, approximately 99.5% of the Earth's crust is made up of just 8 elements: oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. These 8 elements make up the majority of the Earth's crust and are essential for life on the planet.

Answer 4

By mass, approximately 99.5% of the Earth's crust is made up of just eight elements. These elements, in descending order of abundance, are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. Together, they constitute the vast majority of the Earth's crust composition. These elements form various minerals and compounds that give the crust its characteristic structure and provide the building blocks for rocks and soils found on the Earth's surface.

Answer 5

By mass, the Earth's crust is predominantly composed of just eight elements. These elements, often referred to as the "Big Eight," make up about 99.5% of the Earth's crust. Here are the approximate percentages of these elements in the Earth's crust:

1. Oxygen (O): ~46.6%
2. Silicon (Si): ~27.7%
3. Aluminum (Al): ~8.1%
4. Iron (Fe): ~5.0%

Answer 6

By mass, aluminum makes up about 8% of the Earth's crust. It is a significant component of various minerals, contributing to the composition of rocks like feldspar and bauxite.

Answer 7

Approximately 99% of the Earth's crust, by mass, is composed of just eight elements. These elements are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. They form the foundational components of the minerals and rocks that constitute the majority of the Earth's solid outer layer.