Question

Calculate the number of atoms in 0.4 gram of metal if it forms fcc structure.
\([ \rho \times a^3 = 1.2 \times 10^{-22} \text{ g} ]\)

• A. \(2.516 \times 10^{22}\)
• B. \(1.333 \times 10^{22}\)
• C. \(3.721 \times 10^{22}\)
• D. \(4.905 \times 10^{22}\)

Hint:

FCC: 4 atoms/unit cell → always multiply by 4.

Answer 1

The Correct Option is B