The Most Abundant Metallic Element in Earth's Crust

What is the most abundant metallic element by mass in Earth's crust?

a) Aluminum
b) Iron
c) Copper
d) Gold

Answer:

The correct answer is: a) Aluminum

Aluminum is the most abundant metallic element by mass in Earth's crust, making up 8.23% of the crust. This versatile metal is widely used in various industries due to its lightweight, corrosion resistance, and conductivity properties. Aluminum is commonly found in silicate minerals such as Plagioclase feldspar, amphibole, pyroxene, and potassium feldspar.

These minerals are essential components of igneous and metamorphic rocks, where aluminum plays a significant role in their structures. The presence of aluminum in these silicate minerals contributes to the overall abundance of aluminum in the Earth's crust.

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