This video lecture speaks about the 7 types of crystal systems (Cubic, Tetragonal, Orthorhombic, Trigonal, Monoclinic, Triclinic, Hexagonal). 7 crystal systems consist of 14 different types of unit cells called Bravais lattices. The details of each unit cell and their figures are discussed. The various concepts like packing fraction or packing density, co-ordination number and no. of atoms per unit cell are also being taught. This video is of long duration but contains each and every aspect of 7 crystal system. So, I recommend the viewers to watch this for detail understanding rather than going for the other short video.
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18 сен 2024
