- Primitive Cubic Unit Cell
- Body-Centred Cubic Unit Cell
- Face-Centred Cubic Unit Cell
Shaalaa.com | Number Of Atoms In A Unit Cell
An element crystallises in a b.c.c lattice with cell edge of 500 pm. The density of the element is 7.5g cm-3. How many atoms are present in 300 g of the element?
An element with molar mass 27 g mol−1 forms a cubic unit cell with edge length 4.05 ✕ 10−8 cm. If its density is 2.7 g cm−3, what is the nature of the cubic unit cell?
How can you determine the atomic mass of an unknown metal if you know its density and the dimension of its unit cell? Explain.
What is the coordination number of atoms:
(a) in a cubic close-packed structure?
(b) in a body-centred cubic structure?
Calculate the number of unit cells in 8.1 g of aluminium if it crystallizes in a f.c.c. structure. (Atomic mass of Al = 27 g mol–1)