1. Potassium (K): Potassium is a metal that belongs to Group 1 (Alkali metals) of the periodic table. In KMnO₄, potassium ions (K⁺) are present.
2. Manganese (Mn): Manganese is a metal that belongs to Group 7 (Transition metals) of the periodic table. In KMnO₄, manganese is in the +7 oxidation state (Mn⁷⁺).
3. Oxygen (O): Oxygen is a nonmetal that belongs to Group 16 (Chalcogens) of the periodic table. In KMnO₄, four oxygen atoms are bonded to the manganese atom through double bonds.
The formula KMnO₄ indicates the ratio of these elements in the compound. There is one potassium ion (K⁺), one manganese ion (Mn⁷⁺), and four oxygen ions (O²⁻).
