Question

Give one property common to both hcp and ccp crystal lattices .​

Answer 1

Answer:

Solution. Properties common to both hcp and ccp lattice are the same coordination number of the particles (i.e., 12) and the same packing efficiency (74%).

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Answer 2

Properties common to both HCP and CCP lattice are the coordination number of the particles (i.e., 12) and the packing efficiency (74%).

• The Hexagonal Close-Packed crystal structure is one of the most common ways for atoms to arrange themselves in metals.
• A hexagonal prism with one atom on each vertex and three atoms in the center makes up the Hexagonal Close-Packed unit cell.
• HCP is one of the most stable crystal structures and has the highest packing density.
• Cubic Close Packed and Face Centered Cubic refer to the same lattice. This cell is made by inserting one additional atom into each face of a simple cubic lattice, thus the name "face-centered cubic."
• The CN of the HCP and CCP lattices is 12 and the packing efficiency is 75%.