What type of lattice is NaCl?
NaCl is a crystal structure with a face centered cubic Bravais lattice and two atoms in the basis. The Bravais lattice is fcc.
Which forms crystals of NaCl?
Solution: NaCl crystal structure is formed by Na+ cation and Cl− anion. Cl− forms a FCC lattice and Na+ occupies all the octahedral voids. It is also called as Rock Salt type structure.
What is the basis for NaCl?
NaCl, Sodium Chloride, Salt The basis is two ions, a sodium cation and a chlorine anion.
Is NaCl tetrahedral or octahedral?
Face-centered cubic (fcc) lattice structures provide a framework for octahedral holes. A typical example of this setting is sodium chloride (NaCl). The chloride ions form octahedral holes which the smaller sodium ions occupy.
How many interstitial sites are in NaCl?
There are three types of interstitial sites: trigonal, tetragonal and octahedral. Three coordinate trigonal intersticial sites appear within a layer, the other two – between layers.
How many Na and Cl ions are in the NaCl Crystal?
The structure of sodium chloride consists of eight ions a unit cell, four are Na+ ions and the other four are Cl– ions.
What is Z for NaCl?
Like, for NaCl which is in fcc- Z value is 4 but according to its hexagonal close packing structure its coordination number is 6.
What is the coordination number of NaCl 6?
The coordination number of sodium is 6. Likewise, six sodium ions immediately surround each chloride ions, making the coordination number of chloride also equal to 6. Because the formula unit of sodium chloride displays a 1:1 ratio between the ions, the coordination numbers must be the same.
What does the crystal structure of NaCl look like?
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.
What kind of cell does NaCl have?
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.
Which is the closest packed plane in NaCl?
Notice that the (111) plane is hexagonally closest packed. Fig. 3 The (111) plane of NaCl. Fig. 4 The (100 plane of NaCl. Something that surprises novices is that the 111 plane does not contain the body centered atom. It is important for the beginning student to recognize that the 111 plane does not cut through 1/2, 1/2, 1/2!