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Chapter 5: Problem 14

Coordination number for an atom in a primitive cubic unit cell is, (a) 6 (b) 8 (c) 10 (d) 12

Short Answer

Expert verified
The answer is (a) 6. In a primitive cubic structure, the coordination number, which is the number of nearest neighbors an atom has, is 6.

Step by step solution

01

Identify the type of cubic structure

The given unit cell is a primitive cubic structure. This is the simplest of all cubic structures and hence, each atom at its corners are in direct contact with atoms on its six sides.
02

Determine the coordination number

\nIn a primitive cubic cell, the atom at any corner is in direct contact with its six neighboring atoms: one above, one below, one to the left, one to the right and one in front and one behind, thus having a coordination number of 6.

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