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A compound of formula a2b3 has the hcp lattice. Which atom forms the hcp lattice and what fraction of tetrahedral voids is occupied by the other atoms?
Most Upvoted Answer
A compound of formula a2b3 has the hcp lattice. Which atom forms the h...
Explanation:

  1. What is hcp lattice?


    1. The hcp (hexagonal close-packed) lattice is a type of crystal structure where the atoms are arranged in a close-packed hexagonal pattern.

    2. In an hcp lattice, each atom has 12 nearest neighbors, and the lattice can be described by two lattice parameters, a and c.


  2. Which atom forms the hcp lattice?


    1. In an a2b3 compound with an hcp lattice, the a atoms form the hcp lattice.


  3. What fraction of tetrahedral voids is occupied by the other atoms?


    1. The b atoms occupy the tetrahedral voids in the hcp lattice.

    2. The hcp lattice has two types of voids: octahedral and tetrahedral voids.

    3. The b atoms occupy one-third of the tetrahedral voids in the hcp lattice.

    4. Therefore, the fraction of tetrahedral voids occupied by the b atoms is 1/3.


Community Answer
A compound of formula a2b3 has the hcp lattice. Which atom forms the h...
A atoms occupy hcp lattice and 3/4th of B atoms occupy tetrahedral voids
a6b9=a2b3
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A compound of formula a2b3 has the hcp lattice. Which atom forms the hcp lattice and what fraction of tetrahedral voids is occupied by the other atoms?
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