What Is The Most Abundant Element In Earth S Crust

Hydrogen is produced by stars making it one of the most abundant elements not just on earth but in the entire known universe.

Therefore the silicates are the most common group of minerals on earth. Estimates of elemental abundance are difficult because a the composition of the upper and lower crust are quite different and b the composition of the continental crust can vary. But the relatively thin crust consists of a large amount of aluminum with almost all terrestrial rocks having a percentage of aluminum in their makeup. This is not a list going by weight as it would be a different order this list goes by pure percentage.

It readily combines with silicon si to form silicate minerals or with iron fe to form various iron ore compounds. Oxygen o 2 is by far the most abundant element in earth s crust at 46 6 percent nearly half of the mass of the crust. Of course the earth s crust is only the outer portion of the earth. Hydrogen has a lot of uses most importantly rocket fuel.

The abundance of elements in earth s crust is shown in tabulated form with the estimated crustal abundance for each chemical element shown as mg kg or parts per million ppm by mass 10 000 ppm 1. Silicon is the second most abundant element 27 7 followed by aluminum 8 1 iron 5 0 calcium 3 6 sodium 2 8 potassium 2 6. The most abundant element in the earth s crust is oxygen making up 46 6 of earth s mass. When you go deeper inside the earth iron becomes the most abundant metal.

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Oxygen is the most abundant element in the earth s crust at 461 000 parts per million. These eight elements account for approximately 98 5 of the total mass of the earth s crust. It s the third most abundant of all elements in the crust making up eight percent by parts per million. Hydrogen is the least common on this list but one of the most common on earth.

Within the universe at large oxygen ranks number three in abundance. This means it makes up roughly 46 of the earth s crust. Oxygen makes up 21 of the earth s atmosphere and 90 of the mass of water.