Question

The crystal structure of the following materials is FCC except

• A. Aluminum
• B. Magnesium
• C. Nickel
• D. Copper

Hint:

FCC metals are generally ductile and can undergo significant plastic deformation. In contrast, HCP metals, like Magnesium, tend to be more brittle due to their limited slip systems and more restricted movement of atoms.

Answer 1

The Correct Option is B

Face-Centered Cubic (FCC) is a common crystal structure in metals, where atoms are arranged at the corners and the centers of each face of the unit cell. Step 1: Identifying the crystal structures - Aluminum (Al): FCC - Nickel (Ni): FCC - Copper (Cu): FCC - Magnesium (Mg): Hexagonal Close-Packed (HCP)

Step 2: Conclusion Among the given options, Aluminum, Nickel, and Copper exhibit an FCC structure, while Magnesium exhibits a Hexagonal Close-Packed (HCP) structure. Therefore, the correct answer is Magnesium.