Thallium (I) chloride crystallizes in either a simple cubic lattice or FCC lattice of Cl− ion. The density of a given sample of solid is 9.0 g cm−3 and edge of the unit cell is 3.95 x 10−8 cm. Predict the category of unit cell.
Given: Density = 9.0 g cm–3
Edge length (a) = 3.95 x 10−8 cm
Atomic mass of Th (M) = 232
To find: Category of unit cell = ?
Formula: i. V = a3
From formula (ii),
z =1 atom per unit
Hence it is Simple cubic structure ( SC)
