Sodium crystallises in the cubic lattice and the edge of the unit cell is 430 pm. Calculate the number of atoms in a unit cell. [Atomic mass of Na=23.0 amu, Density of sodium = 0.9623 "g cm"^(-3), N_A=6.023xx10^23 "mol"^(-1)]

Sodium crystallises in the cubic lattice and the edge of the unit cell

1.	Sodium crystallises in the cubic lattice and the edge of the unit cell is 430 pm. Calculate the number of atoms in a unit cell. [Atomic mass of Na=23.0 amu, Density of sodium = 0.9623 "g cm"^(-3), N_A=6.023xx10^23 "mol"^(-1)]
Answer» ANSWER :2, i.e., BCC