Question

An element has atomic mass 93 gram per mole and density is 11.5 gram per metre inverse cube if edge length of its unit cell is 300 pm identify the type of unit cell

Answer 1

Answer:

BCC

Explanation:

d = 11.5 gcm− 3

edge length (a) =  300 pm

atomic mass (M) = 93 g mol− 1  

d   =    Zm  /  a3 x Na

11.5 =  Z x 93  /  (300x10-10 cm) 3 x 6.022 x 1023

Z = 11.5 x 27x 10-24 x 6.022 x 1023  / 93

Z = 2.009 = 2

It is body centric cubic unit cell.