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crust
The layer of moon that is composed of magnesium, iron,silicon (not silica) is called Crust.It is outermost layer of the moon. It also contains Calcium,Aluminum and Oxygen.
it's mantle
it's mantle
Oceanic crust.
Mantle.Earth's largest layer is the mantle.
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earths mantle is made of silicon,iron,aluminum,calcium,sodium,potassium,magnesium,and mostly oxygen
The lower mantle's chemical composition includes silicon, magnesium, and oxygen. Most likely, it probably also contains some iron, calcium, and aluminum The material at these depths is often referred to as the "post-perovskite" phase which is the high-pressure form of magnesium silicate (MgSiO3).
Earth's lithosphere is predominantly composed of the following elements: Oxygen (46.6 %), Silicon (27.7 %), Aluminium (8.13 %), Iron (5.0 %), Calcium (3.6 %), Sodium (2.8 %), Potassium (2.5 %), Magnesium (2.1 %).
Magnesium does oxidize. That is why magnesium is often found on earth with a thin layer of Magnesium Oxide (MgO). For this reason when using magnesium in experiments you must always sand it to remove the oxide layer.
Layer of gases surrounding earth composed mainly of nitrogen and oxygen?