Question

the coordination number of atom in bcc crystal lattice is___

a. 2
b. 4
c. 6
d. 8​

Answer 1

Answer:

d. 8 is the answer

Explanation:

The body-centered cubic (bcc) has a coordination number of 8 and contains 2 atoms per unit cell. The simple cubic has a coordination number of 6 and contains 1 atom per unit cell.

Request:

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Answer 2

The correct response to the given question is option d: 8.

• The lattice of crystal is the arrangement of atoms or ions or particles in space.
• It is the main property of solid material because it gives us an idea of how atoms in solid material or molecules are close to each other and packed as a whole.
• The coordination number gives information by selecting one atom and how many surrounding atoms are there for that atom. The surrounding or the neighboring atoms is called its coordination number.
• BCC is the type of structure of lattice in which one atom is at the center of the body and all other atoms are present at all the corners of this cubical structure.
• Taking one central atom in the body of the crystal and per atom, at all corners, we get the answer.
• Because all corners are filled with one atom and the cube has eight corners therefore its coordination number is also eight.
• Hence, for the Body-centered type of lattice arrangement eight (8) neighboring atoms are present surrounding one atom.