Basic Electronics

                              Matter • The common definition of matter is  anything that has both mass and occupies space • Basically matter classified into three states . 1. Solid 2.Liquid 3.Gas It can be defined as one which occupies space    and has mass It is the smallest particle of any substance which contains all the properties of that substance ATOM                                                    MOLECULE It is the smallest particle of any substance which contains all the properties of that substance                                                                        Matter AS THE NUMBER OF ELECTRONS IN VALANCE SHELL 1.Conductor 2.Insulator 3.Semiconductor                             CONDUCTORS                   INSULATORS                       SEMI- CONDUCTOR