The distance is picometer between centre of two closest sodium atoms in bcc of sodium metal with a unit length of `4.3A^(@)` is
The distance is picometer between centre of two closest sodium atoms in bcc of sodium metal with a unit length of `4.3A^(@)` is
A. 214
B. 372
C. 256
D. 328
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Correct Answer - B
Distance between the centres ot two closest
atoms in BCC lattice `(sqrt(3))/(2)*a`
`=0.866a=0.866xx4.3A^(@)`
`=3.72A^(@)=372` pm
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