The most abundant metal in the earth’s crust is 1. Iron 2. Aluminum 3. Calcium 4. Sodium
The Correct Answer and Explanation is:
The correct answer is 2. Aluminum.
Aluminum is the most abundant metal in the Earth’s crust, making up approximately 8.23% by weight of the Earth’s solid surface. It is more abundant than iron, calcium, and sodium, which are also common elements in the Earth’s crust, but aluminum stands out due to its prevalence in the form of various minerals.
The abundance of aluminum in the Earth’s crust is mainly due to its presence in common minerals such as feldspar, bauxite, and clay. Feldspar, in particular, is a family of silicate minerals rich in aluminum, and bauxite is the primary ore from which aluminum is extracted. Aluminum is not found in its pure metallic form in nature; instead, it exists as part of various compounds, often combined with oxygen and other elements.
Iron, while an important metal, is less abundant than aluminum in the Earth’s crust, making up about 5% by weight. Calcium and sodium, while abundant, are not as prevalent as aluminum. Calcium is typically found in minerals like calcite and gypsum, while sodium is common in minerals such as halite and feldspar.
Aluminum is also highly valued for its properties. It is lightweight, corrosion-resistant, and has a wide range of uses, from construction materials to packaging and aerospace technology. The fact that aluminum is so abundant in the Earth’s crust and has many desirable physical properties makes it a critical resource in many industries.
In conclusion, the most abundant metal in the Earth’s crust is aluminum, not iron, calcium, or sodium.
