Question

Give one example of each of polyatomic cation and a polyatomic anion.

Answer 1

• A polyatomic ion is a group of atoms carrying a positive or negative charge.
• A polyatomic ion is a group of atoms carrying a positive charge is called a polyatomic cation.
• Ammonium ${{\mathrm{NH}}_4}^{+}$ ion is a polyatomic cation.
• A polyatomic ion is a group of atoms carrying a negative charge is called a polyatomic anion
• Sulphate (${\left({\mathrm{SO}}_4\right)}^{2-}$ ion is a polyatomic anion.