The crystal system of a compound with unit cell dimensions a = 0.387, b = 0.387 and c = 0.504 nm and α =β =90o and γ =120o is

Question

The crystal system of a compound with unit cell dimensions a = 0.387, b = 0.387 and c = 0.504 nm and α =β =90o and &gamma; =120o is (A) Hexagonal (B) Cubic (C) Rhombohedral (D) Orthorhombic

Tardigrade Admin · Accepted Answer

For the given crystal, a=b≠ c,α =β =90o,&gamma; =120o These are the characteristic of a hexagonal system.

Q. The crystal system of a compound with unit cell dimensions a = 0.387, b = 0.387 and c = 0.504 nm and $α = β = 9 0^{o}$ and $γ = 12 0^{o}$ is

Hexagonal

Cubic

Rhombohedral

Orthorhombic

For the given crystal,
$a = b \neq = c, α = β = 9 0^{o}, γ = 12 0^{o}$
These are the characteristic of a hexagonal system.

Q. The crystal system of a compound with unit cell dimensions a = 0.387, b = 0.387 and c = 0.504 nm and α=β=90o and γ=120o is