Question

the key components of the mantle are iron , silicon and :​

Answer 1

Answer:

In terms of its constituent elements, the mantle is made up of 44.8% oxygen, 21.5% silicon, and 22.8% magnesium. There's also iron, aluminum, calcium, sodium, and potassium. ... The most common is Silicon dioxide (SiO2) at 48%, followed by Magnesium Oxide (MgO) at 37.8%.