Sodium oxide is an example of Metallic oxides.
Sodium oxide is a simple, strongly basic oxide. It is basic because it contains the oxide ion, O2-a, a solid base with a high tendency to combine with hydrogen ions. Metal oxides are crystalline solids that contain a metal cation and an oxide anion. Sodium oxide is a white crystalline solid. It’s melting, and boiling points are 1132 °C and 1132 °C, respectively.