Question

How many unit cells are present in a cube shaped ideal crystal of NaCl of mass 1.0
[Atomic mass : Na = 23, Cl = 35.5)
(1) 5.14 x 1021
(2) 1.28 x 1021
(3) 1.71 x 1021​

Answer 1

Answer:

2) 1.28*1021

Explanation:

its obvious