MTL200- Chapter 3 The Structure Of Crytalline Solids | Questions & Answers (100
%Score) Latest Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With
Expert Solutions
Crystalline Materials - In which atoms are situated in a repating or periodic array over large distance
Properties of crystalline solids - Depends on the crystal structure of material, the manner in which
atoms, ions, or molecules are spatially arranged
lattice - 3D array of points coinciding with atom positions
unit cell - the smallest group of particles within a crystal that retains the geometric shape of the crystal
Face Centered Cubic (FCC)- Coordinator number - Al, Ag, Au - 12
Number of FCC atoms - 4
FCC Lattice Parameter - a=2sqrt(2)R
Body Centered Cubic (BCC)- coordinator number - Cr, Fe, Tsungten (W) - 8
Number of BCC atom - 2
lattice parameters of BCC - a=4R/ sqrt(3)
Hexagon in Central Place Theory (HCP) - Coordination number - Cd, Zn, Cu, Mg,Ti - 12
Atomic Packing Factor (APF) - The fraction occupied by atom space (Vs/Vc)
Density of atoms - nA / Vc Na
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