Page 136 - MATERIAL SCIENCE AND ENGINEERING PART 1
P. 136

Atomic bonding                                  1         2         3          4
                                                                          3







                     Ionic bond                            Covalent bond                             Metallic bond








                                                                                                  It is always found in

                                                                                                  metals and their

                                                                                                  alloys.


                                                                                                  It carries small

                                                                                                  numbers of valence

                                                                                                  electrons (probably


                                                                                                  one to three), which

                                                                                                  are loosely held so

                                                                                                  that they can easily be


                                                                                                  released to the "cloud

                                                                                                  of electrons" or

                                                                                                  "electron sea".                       121



                                                    Politeknik Ibrahim Sultan
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