10.6 Lattice Structures in Crystalline Solids – Chemistry | face centered cubic coordination number
LearningObjectivesBytheendofthissection,youwillbeableto:DescribethearrangementofatomsandionsincrystallinestructuresComputeionicradiiusingunitcelldimensionsExplaintheuseofX-raydiffractionmeasurementsindeterminingcrystallinestructuresOver90%ofnaturallyoccurringandman-madesolidsarecrystalline.Mostsolidsformwitharegulararrangementoftheirparticlesbecausetheoverallattractiveinteractionsbetweenparticlesaremaximized,andthetotalintermolecularenergyisminimized,whentheparticlespackinthemostefficientman...
Learning ObjectivesBy the end of this section, you will be able to:
Describe the arrangement of atoms and ions in crystalline structures Compute ionic radii using unit cell dimensions Explain the use of X-ray diffraction measurements in determining crystalline structuresOver 90% of naturally occurring and man-made solids are crystalline. Most solids form with a regular arrangement of their particles because the overall attractive interactions between particles are maximized, and the total intermolecular energy is minimized, when the particles pack in the most efficient manner. The regular arrangement at an atomic level is often reflected at a macroscopic level. In this module, we will explore some of the details about the structures of metallic and ionic crystalline solids, and learn how these structures are determined experimentally.
We will begin our discussion of crystalline solids by considering elemental metals,...