Question
Question: The distance between the body centred atom and a corner atom in sodium (a = 4.225 Å) is....
The distance between the body centred atom and a corner atom in sodium (a = 4.225 Å) is.
A
3.66 Å
B
3.17 Å
C
2.99 Å
D
2.54 Å
Answer
3.66 Å
Explanation
Solution
Sodium has bcc structure.

The distance between body centre and a corner =23a
=23×4.225=3.66A˚
