Question

In a face centred unit cell, the number of atoms present is;
a) 1
b) 2
c) 3
d) 4​

Answer 1

The answer is option d)4

Answer 2

Face centred cubic is also called cubic close packed arrangement. It has points at all the comers as well as at the centre of each of the six faces. In this arrangement, there is one atom at each of the eight comers.