$(i)$ 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?
$(ii)$ What is the coordination number of atoms:
$(a)$ in a cubic close-packed structure?
$(b)$ in a body-centred cubic structure?
(N/A) $(i)$ The number of nearest neighbours of any constituent particle present in the crystal lattice is called its coordination number.
$(ii)$ The coordination number of atoms:
$(a)$ in a cubic close-packed structure is $12.$
$(b)$ in a body-centred cubic structure is $8.$
$(ii)$ The coordination number of atoms:
$(a)$ in a cubic close-packed structure is $12.$
$(b)$ in a body-centred cubic structure is $8.$
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