Covalent bond - Electron Sharing, Ionic bond - Electron transfrt, Metallic bond - Electrons sea, Metal - Cation, Nonmetal - Anion, NaCl - Ionic compound, H2O - Covalent compound, Fe2 - Metallic compound, Group 16 - 2 bonds, Group 13 - +3, Group 15 - 3 free VE,

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