Question

at room temperature sodium crystallizes in a body centred cubic lattice with unit cell length 4 24 a.theoretical density of sodium will be (na=23)​

Answer 1

Answer:

Here is the solution

Explanation:

Answer

A body centred cubic unit cell contains 8 atoms at the 8 corners and one in the centre

.∴ Total number of atoms per unit cell (n)=(8×

8

1

)+1=2

∵ Density =

Av.Number×a

3

n×at.wt

=

6.023×10

23

×(4.24×10

−8

)

3

2×23

=1.002gcm

−2