Quartz
blah
its the percentage in mass !
is it oxygen
Neodymium is relatively abundant in the Earth's crust, with an average concentration of about 38 parts per million. It is considered a relatively common rare-earth element compared to others in the lanthanide series.
i have no clue
Lithium is the 25th most abundant element in Earth's crust, with an average concentration of about 20 parts per million (ppm). This makes it relatively rare compared to other elements like silicon and oxygen.
wates up my hommey
Carbon
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.
17 only
The abundance ratio by mass, in the earth's crust, is 1:2305, approx.
Approximately 100 free elements are found in the earth's crust. There are eight elements that are found in somewhat of an abundance. These include: oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium.