Question

Discuss crystal structure of NaCl in details.

Answer 1

NaCl has a cubic unit cell. It is best thought of as a face-centered cubic array of anions with an interpenetrating fcc cation lattice (or vice-versa). The cell looks the same whether you start with anions or cations on the corners. Each ion is 6-coordinate and has a local octahedral geometry.

Atomic Positions: Cl: 0, 0, 0 Na: 0.5, 0.5, 0.5; (can interchange if desired)

Cell Parameters: a = 5.6402 Å, Z=4

Lattice Type: Face-Centered

Alternate Names: Halite, rock salt, sea salt, table salt, salt

Answer 2

NaCl (sodium chloride ) ak prakar ka aaynic krystal hota hai jisme Na (+)hota hai aur Cl (-)hota hai