" b) Coordination Number "

Coordinations number.

Atomic Radius And Coordination Number

Which of the following statement is/are incorrect in the rock-salt structure if an ionic compounds ? (A) coordination number of cation is four where as that of anion is six. (B) coordination number of cation is six where as that of anion is four. (C) coordination number of each cation and anion is four. (D) coordination number of each cation and anion is six.

{:("Column-I","Column-II"),((A)"74% occupancy of space",(p)"cubic close packing of identical spheres"),((B)"Coordination number =6",(q)"hexagonal close packing of identical spheres."),((C )"68% occupancy of space",(r)"body centered cubic packing of identical spheres."),((D)"Coordination number =12",(s)"simple cubic packing of identical spheres"),(,(t)"AB AB AB ....type of close packing of identical spheres"):}

What is Coordination number?

For an ionic crystal of the general formula A^+B^- and coordination number 6, the radius ratio will be: