Chemical bonding .Chemical bonds: Physical Structure→ Chemical properties 1.Ionic bond 2.Covalent bond 3.Metallic bond NaCl D-Glucose Molecule Fe (Iron)Chemical Bonding •Chemical bonds: 1. Ionic bond 2. Covalent bond 3. Metallic bond Physical Structure properties Chemical  ⇒   NaCl D-Glucose Molecule Fe (Iron)