Formula and state at room temperature	Na₂O (s)	MgO (s)	Al₂O₃ (s)	SiO₂ (s)	P₄O₁₀ (s)/ P₄O₆ (s)	SO₃ (l)/ SO₂ (g)	Cl₂O₇ (l)/ Cl₂O (g)
Structure	Ionic	Ionic	Ionic	Giant Covalent	Molecular Covalent
Acid-Base Character	Basic		Amphoteric	Acidic

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