Page 13 - Chemistry ICSE Class X
P. 13

CHAPTER 1







                         Periodic Properties and




                         Variations of Properties


                                         (Physical and Chemical)






                                                    TOPICS COVERED

              ƒ  Modern long form periodic      ƒ  Ionisation energy              ƒ  Factors affecting
               table                              (or Ionisation potential)         electronegativity
              ƒ  Periodic properties and their   ƒ  Periodic variation of         ƒ  Periodic variation of
               variations in groups and           ionisation energy                 electronegativity
               periods                          ƒ  Electron affinity              ƒ  Relationship between atomic
              ƒ  Atomic size                    ƒ  Periodic variation of electron   number (proton number) and
              ƒ  Metallic character               affinity                          atomic mass (mass number)
              ƒ  Nonmetallic character          ƒ  Electronegativity                for light elements
                                                                                  ƒ  Alkali metals and halogens




                                        Highlight the past and   TOPIC-WISE             Provide the first step in
               BOXED FEATURES           future developments in   ASSIGNMENTS            testing your learning
                                        science


                                        Help develop your                               Enable you to measure
               ILLUSTRATIVE             understanding for the   LET US ANSWER SOME      your conceptual
               QUESTIONS                topics studied         MORE QUESTIONS           understanding




               QUESTIONS FROM           Help you to practise your   LET US SAY IT AGAIN  Helps you to reflect back
               BOARD PAPERS             exam skills                                     on what you have learned
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