MTL 200 certification ASSESSMENT GUIDE
2025|MOST COMMON QUESTIONS WITH
CORRECTLY VERIFIED ANSWERS (the latest
ones)|ALREADY A+ GRADED|GUARANTEED
PASS/wishing you success in your studies
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
Planar Density - (No. of atoms centered on a plane) / (area of plane)
Linear Density - (No. of atoms in line) / (length of the chosen line)
The direction of Crystalline - [xyz] for line, (xyz) for plane
2025|MOST COMMON QUESTIONS WITH
CORRECTLY VERIFIED ANSWERS (the latest
ones)|ALREADY A+ GRADED|GUARANTEED
PASS/wishing you success in your studies
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
Planar Density - (No. of atoms centered on a plane) / (area of plane)
Linear Density - (No. of atoms in line) / (length of the chosen line)
The direction of Crystalline - [xyz] for line, (xyz) for plane
