Boron.
The second most abundant element in the Earth's crust is silicon, comprising 27.8% of the crust by mass.
The most abundant element in the earth's crust is a non-metal, oxygen. The second is the metalloid, silicon. The third and fourth are the metals, aluminum and iron.
Aluminum!!!!!=D ================== Nope - aluminum is almost always classified as a metal, not a metalloid. The most abundant metalloid is silicon - which, incidentally is about 3 times as abundant as aluminum.
silicon is a metalloid meanind it is both metal and nonmetal. it is the secon most abundant element on earth which takes up 27.7% of the Earths crust. it cannot be found in pure form
silicon.
That would be silicon, or SiO2
Oxygen is the most abundant element in Earth's crust, making up about 47% of its mass. Silicon is the second most abundant element, comprising approximately 28% of the crust's mass.
silicon is a metalloid meanind it is both metal and nonmetal. it is the secon most abundant element on earth which takes up 27.7% of the Earths crust. it cannot be found in pure form
The most common chemical elements in the crust are oxygen (46.6%), silicon (27.7), aluminum (8.1), iron (5.0), calcium (3.6), potassium (2.8), sodium (2.6), and magnesium (2.1).Oxygen is a non-metal and silicon is a metalloid - so the most common metal is aluminum.
That element is Oxygen by 46.6%
Silicon
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.