Step-by-step explanation:
The ions are;
Al3+ Na+ Cl- (SO₄)₃²⁻
The Cations (Positive ions) are;
Al³⁺ Na⁺
The Anions (Negative ions) are;
Cl⁻ (SO₄)₃²⁻
Compounds are formed when cations are bonded to anions
NaCl - Formed by Na⁺ and Cl⁻
Al₂(SO₄)₃ - Formed by Al³⁺ and (SO₄)₃²⁻
AlCl₃ - Formed by Al³⁺ and Cl⁻