What is the coordination number of (i)sodium in sodium oxide (Na_2O) ? (ii)oxide ion in sodium oxide (Na_2O) ? (iii)calcium in calcium fluoride (CaF_2) ? (iv)zinc in zinc blende (ZnS) ?

What is the coordination number of (i)sodium in sodium oxide (Na_2O) ?

1.	What is the coordination number of (i)sodium in sodium oxide (Na_2O) ? (ii)oxide ion in sodium oxide (Na_2O) ? (iii)calcium in calcium fluoride (CaF_2) ? (iv)zinc in zinc blende (ZnS) ?
Answer» SOLUTION :(i)4 , (ii)8 , (iii)4 , (IV)4