Exercise 2
Question 4
(i) What is meant by the term 'coordination number'?
(ii) What is the coordination number of atoms:
(a) in a cubic close-packed structure?
(b) in a body-centred cubic structure?
(i) The number of spheres which are touching a given sphere is called the coordination number.
(ii) a) in a cubic close packed structure the coordination number is 12
b) In a body centered cubic close structure the coordination number is 8
