Argon is a gas and is found in the earth's atmosphere; not in the earth's crust.
about 1.5-2 mg/kg.
Oxygen and silicon
Yes all metals are in the earths crust in ore form.
The sudden vibration in the plates inside the crust causes the earths crust to rise & fall.
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 earth's crust is not stress
wdjefioejf
About 7% of the earths crust
The percentage of Earth's crust is less than one percentage in terms of Earth's volume. The Earth's crust is actually a thin layer.
its the percentage in mass !
6%
iron and magnesium
5.4%
Oxygen and silicon
With a very sizable iron core and a (by comparison) wafer-thin crust, I doubt that the earth's crust even approximates a full percentage point.
90 persent and lava
Oxygen and silicon make up about 75% of Earth's crust, with oxygen being the most abundant element at around 46.6% and silicon at around 27.7%. Together, they form the majority of the minerals that make up the Earth's crust.
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.