Sodium has a `bc c` structure with nearest neighbour distance of `365.9` pm. Calculate its density. (Atomic mass of sodium `= 23`)

Sodium has a b.c.c. structure with nearest neighbour distance 365.9 pm, calculate its density. (Atomic mass of sodium = 23)

Sodium has bcc structure with nearest neighbour distance 367.9 pm. Calculate its density.

(a) Sodium metal crystallizes in bcc structure. Its unit cell edge length is 420 pm. Calculate its density. (Atomic mass of sodium = 23 u, N_(A) = 6.022 xx 10^(23) mol^(-) ). (b) What is Frenkel defect ? How does it affect the density of a crystal ?

potassium has a bcc structure with nearest neighbour distance 4.52Å . Its atomic weight is 39,its density will be

Potassium has a bcc structure with nearest neighbour distance 4.52Å . Its atomic weight is 39,its density will be