Page 123 - MATERIAL SCIENCE AND ENGINEERING PART 1
P. 123

Atomic bonding                                  1         2         3          4
                                                                          3







                     Ionic bond                            Covalent bond                             Metallic bond







      Properties of ionic

      compound:

      1. Hard and brittle.

      2. Held together by strong

          electrostatic forces.

      3. Good insulators are

          solid because there are

          no free electrons/ions.

      4. Conduct electricity

          when it is dissolved or

          melted.

      5. High melting/boiling

          points.
                                                                                                                                        108



                                                    Politeknik Ibrahim Sultan
   118   119   120   121   122   123   124   125   126   127   128