The unit cell of an element having atomic mass 100 and density `12 g cm^(-3)` is a cube with edge length 300 pm, the structure of crystal lattice is

Options

A. fcc
B. bcc
C. simple cubic
D. None

Answer

B

Explanation

Number of atoms per unit cell
`=(rho a^(3)N_(A))/(M)=(12xx (3xx 10^(-8))^(3) xx6.023xx10^(23))/(100)` ltbr `=1.96 ~~2`
The unit cell is Bcc.