Question

What is the crystal structure of Magnesium?

(a) Face centered cubic structure

(b) Body-centered cubic structure

(c) Hexagonal close packed structure

(d) Simple cubic structure

This question was posed to me by my college director while I was bunking the class.

My question comes from Principles topic in division Corrosion Principles of Corrosion Engineering

Answer 1

The correct option is (c) Hexagonal close packed structure

The explanation is: HCP is abbreviated as hexagonal close packed structure. Conditions for HCP is a1=a2≠a3 and α=β=60, γ̈=120, where a1, a2, a3 are unit vectors in three directions and α, β, γ̈ are angles between them. Magnesium possesses an HCP crystal structure.