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Nacl lattice
Nacl lattice









Structure of Crystals Crystal Lattices Unit Cells From Unit Cell to Lattice From Lattice to Unit Cell Stoichiometry Packing & Geometry Simple Cubic Metals Close Packed Structures Body Centered Cubic Cesium Chloride SodiumĬhloride Rhenium Oxide Niobium Oxide Except as otherwise noted, all images, moviesīy Dr. Occupy the octahedral sites in the Na sublattice.

nacl lattice

The Na's occupy the octahedral sites in the Cl sublattice, and the Cl's We can look at the NaCl as made up of fcc / ccp lattices interpenetrating. Notice that there are 6 Cl surrounding the Na, and 6 Na around eachĬl. Lattice Energy, U, Is Defined As The Enthalpy Pogil Chemistry Answer Key Mole. It may not be obvious, the red Cl's represent a different fcc / ccp unitĬell. Model 2 Ionic Compound Names (Metals that form one ion) NaCl Sodium. There may be more than one way to divide a lattice into unit cells. The Cl sublattice must also be fcc / ccp. Since the repetition patterns of Na and Cl are the same in the lattice, If we compare this with the fcc / ccp unitĬell, it is clear that they are identical. A sodium ion sits at the centre of the cube. horizontal vertical If we take the NaCl unit cell and remove all the red Cl ions, we are The sodium chloride crystal structure consists of a face-centred cubic lattice.

nacl lattice

Click on the images below to view the open structure rotating. Ions with a double charge produce lattices with a much. Because Cl is larger than F, NaF will have a higher lattice energy than NaCl. The same structure, but with the ions moved further apart allows For example sodium chloride lattice enthalpy is given by: NaCl(s) Na+(g) + Cl-(g) H +790 kJ mol-1. NaF + Cl2 NaCl + F2 Uses of Sodium fluoride - NaF Sodium fluoride has. However, the tightly-packed structures make it difficult to These stack so: Click on the images below to view the NaCl lattice structure Click on the unit cell above to view it rotating.

nacl lattice

Sodium chloride also crystallizes in a cubic lattice, but withĪ different unit cell. Sodium Chloride crystal lattice SODIUM CHLORIDE











Nacl lattice