Glossary

    • (a) What is the difference between an ionic bond and a covalent bond?
    • (b) Which of the following is true about metallic bonding in metals?

      The metal ions are fixed in the metal structure but the valence electrons are free to move around the structure.
      The metals are poor conductors of electricity.
      The metal ions are free to move around the metal structure.

    • (c) Which of the following is true about ionic bonding in ionic compounds.

      Crystalline ionic compounds conduct electricity.
      In water, ions are produced.
      Ionic compounds have very low melting points.

    • (d) Which of the following is true about covalent bonding in molecules.

      Compounds involving covalent bonding conduct electricity.
      In water, they form ions.
      Compounds involving covalent bonding have low melting points.

    • (e) Which of the following compounds have ionic bonding, KCl, CO2, or NH3

      KCl CO2 NH3

    • (f) Which of the following compounds have covalent bonding, MgBr2, Br2, or NaBr

      MgBr2 Br2 NaBr

    • (g) Why is it not correct to refer to sodium chloride as a "molecule"?

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Chemistry Department
British Columbia Institute of Technology, Burnaby, B.C. Canada.
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