Page 229 - ICSE Chemistry 8
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Separation of Mixtures






                   Solid-Solid                   Solid-Liquid                               Liquid-Liquid
                    Mixtures                      Mixtures                                     Mixtures


                                                                                                         Fractional
                             Handpicking                    Sedimentation and decantation
                                                                                                         distillation

                                Sieving                        Filtration

                                                                                                       Using separating
                              Winnowing                     Centrifugation
                                                                                                            funnel

                             Magnetic separation             Evaporation


                              Sublimation                     Distillation                              Chromatography

                              Gravitation                   Crystallisation






                                                        4. ATOMIC STRUCTURE



                                                          Atoms





                    Protons                              Neutrons                             Electrons



                               Positively                            Neutral in                           Negatively
                                charged                                charge                              charged





                             Discovered by                         Discovered by                        Discovered by
                               Goldstein                             Chadwick                             Thomson





                                                                      Total Number                          Electrons
                             Number of protons
                                                                     of protons and                       distributed in
                             present is equal to
                                                                  neutrons is equal to                  various shells K, L,
                              atomic number
                                                                     mass numbers                           M, N, ........


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