• Molar mass= 60 g mol-1
• Density = 6.23 g cm-3
• edge length of the unit cell is 4× 10-8 cm.
Mass of the atom in the unit cell,
Then, density of the unit cell =
where z is the no. of atoms present in the unit cell, M is the molar mass of the element, a is the edge length of the cube and NA is the Avogadro number.
Since, there are 4 atoms present in the unit cell it is a fcc or ccp lattice.
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