An element A (Atomic weight = 12) having bcc structure has unit cell edge length 400 pm. Identify the correct option(s). (Given : `N_(A)=xx10^(23)`)

Options

A. The density of solid element is `6.35gm//cm^(3)` .
B. There are `6xx10^(22)` unit cells in 24gm of the solid element.
C. The atomic radius ios about `1.732Å` .
D. In 25 gm of solid element, the volume ocuupied by atoms is nearly `2.72cm^(3)` only.