By mass Oxygen
The two most abundant elements in the Earth's crust are: Oxygen (46.1%/461,000ppm), and Silicon (28.2%/282,000ppm).
In terms of weight, iron makes up approximately 5% of the earths crust, the fourth most abundant element in the crust. However, remember Earth's Core is nearly all Iron.
Rock is the most abundant material in the crust.
Silicon
Oxygen is the most abundant element in the earth's crust and is not in the boron family. Aluminum is in the boron family and is the third most abundant element in the earth's crust. Refer to the related link for a list of the 10 most abundant elements in the earth's crust and their percentages.
That element is Oxygen by 46.6%
The fifth most abundant element in the Earth's crust is potassium. It makes up about 2.6% of the Earth's crust by weight.
Oxygen and silicon are the two most abundant elements in the Earth's crust. They make up about 75% of the Earth's crust by weight.
In terms of weight, iron makes up approximately 5% of the earths crust, the fourth most abundant element in the crust. However, remember Earth's Core is nearly all Iron.
The most abundant element in Earth's crust is oxygen, making up about 46.6% of the crust by weight.
The most abundant metal in the earth crust is aluminium.
The second most abundant element in the Earth's crust is silicon, comprising 27.8% of the crust by mass.
The two most abundant elements in the Earth's crust are: Oxygen (46.1%/461,000ppm), and Silicon (28.2%/282,000ppm).
Silicon
In terms of weight, iron makes up approximately 5% of the earths crust, the fourth most abundant element in the crust. However, remember Earth's Core is nearly all Iron.
Rock is the most abundant material in the crust.
silicon