Question

Sodium metal exists in bcc unit cell. The distance between nearest sodium atoms is 0.368 nm. The edge
length of the unit cell is :
(1) 0.368 nm
(2) 0.184 nm
(3) 0.575 nm
(4) 0.424 nm
​

Answer 1

(4) 0.424 nm .......................

Answer 2

(4) 0.424 nm .......................