Element is a pure substance made up of only one kind of atom.Examples of ElementsHydrogen (H)Oxygen (O)Carbon (C)Nitrogen (N)Iron (Fe)Gold (Au)Silver (Ag)Copper (Cu)Helium (He)Aluminum (Al)Compound is a substance made when two or more elements chemically combine.Examples of CompoundsWater (H₂O)Carbon dioxide (CO₂)Table salt (NaCl)Methane (CH₄)Ammonia (NH₃)Glucose (C₆H₁₂O₆)Calcium carbonate (CaCO₃)Hydrogen peroxide (H₂O₂)Baking soda (NaHCO₃)Sulfuric acid (H₂SO₄)