SC FCC BCC

What is the percentage of emptiness in the Face Centered Cubic form?

• 43%

• 29%

• 15%

• 26%

Coordination number of 10 is the characteristic of

• BCC

• FCC

• SC

• none

For FCC

• a = 2r

• a = r√3

• a = 4r/√2

• a = r√2/4

Give number of atom/s in FCC.

• 2

• 4

• 6

• 8

What is the atomic packing factor (APF) for a Body-Centered Cubic (BCC) structure?

• A) 0.52

• B) 0.68

• C) 0.74

• D) 0.34

In a Simple Cubic (SC) structure, how many atoms are there per unit cell?

• A) 1

• B) 2

• C) 4

• D) 8

Which of the following structures has the highest packing efficiency?

• A) Simple Cubic (SC)

• B) Body-Centered Cubic (BCC)

• C) Face-Centered Cubic (FCC)

• D) Hexagonal Close-Packed (HCP)

What is the coordination number of a Face-Centered Cubic (FCC) structure?

• A) 6

• B) 8

• C) 12

• D) 4

For a Body-Centered Cubic (BCC) structure, what is the relationship between the lattice parameter (a) and the atomic radius (r)?

Which crystal structure is characterized by having atoms at each corner and a single atom at the center of the cube?

• A) Simple Cubic (SC)

• B) Body-Centered Cubic (BCC)

• C) Face-Centered Cubic (FCC)

• D) Hexagonal Close-Packed (HCP)