1.

What is the coordination number of sodium in Na_(2)O

Answer»

6
4
8
2

Solution :In `Na_(2)O`, each oxide IONS `(O^(2-))` is co-ordinated to `8 Na^(+)` ions and each `Na^(+)` ion to 4 oxide ions. Hence if has 4:8 co-ordination.


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