卤素 第七主族

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1、双语文件化学（07级双语）Chemistry(07Bilingual)教案TeachingPlan姓名董坤化学学院CollegeofChemistryE/11/2007学生材料/教案（化学学院、董坤）页7/7双语文件PrimaryDepartmentSubjectchemistryClass3Grade3PreparingTime45minDate2010.06.13By董坤NAMEOFLESSONChapter12.1GroupⅦ(AS)POINTSOFEMPHASISPhysicalandchemicalpropertiesofGroupⅦ.POINTSOFDIFFI

2、CULTY(1)ChemicalpropertiesofGroupⅦ,especiallydisplacementreactions.(2)Theruleschangewithincreasingatomicnumbers.AIMSKnowledgeandTechnology:(1)UnderstandandexplainthephysicalandchemicalpropertiesofGroupⅦ,especiallychlorine,bromineandiodine.(2)DescribetherelativereactivityoftheelementsCl2,B

3、r2andI2indisplacementreactionsandexplainthistrendintermsofoxidisingpower,i.e.therelativeeasewithwhichanelectroncanbecaptured.(3)Describeandexplainthereactionsoftheelementswithhydrogen.ProcessandMethod:Thestudentswillbeabletounderstandtheruleswithincreasingatomicnumbersanddevelopthecapabil

4、ityofobservation.Emotionalattitudesandviews:(1)Stimulatestudents’interestinlearningchemistry.(2)ThroughthestudyofpropertiesofGroupⅦ,developtheirself-learningability.NEWWORDSHalogen卤素derived源于Greek希腊语term术语pale苍白greenish绿crystalline透明的sublimes升华purple紫色vapour蒸气isotopes同系物radioactive放射性deep

5、en加深outermostshell最外层generalformula通式halide卤化物hypohalous次卤化物MATERIALSMultimediacomputer,testbookofA-LEVELPREPARATIONPowerPointE/11/2007学生材料/教案（化学学院、董坤）页7/7双语文件PROCEDURESActivity1(minutes)[Teacher]Hellomydearfriends![Students]Helloteacher.[Teacher]OK.Beforeourclassbegins.Iwanttointroduceaf

6、amouspersonnamedLuSu,whoworkedforSunQuanasastrategistinEasternHan.Hewasdeadattheageof46.Inthislessonwewillmeetanewname.ItspronunciationisfamiliarwithitschemicalnameinChinese.It'shalogens.ChinesemeanofhalogenisLuSu,too.Theyhaveseempronunciationbutstandfordifferentthings.It'sanewnameforus,s

7、oreadaftermeplease!Halogen!Halogen![Students]Halogen,Halogen![Teacher]ThenamehalogenisderivedfromtheGreekandmeans'saltproducing'.Itwasfirstusedtothebeginningofthenineteenthcenturybecausechlorine,bromineandiodineareallfoundintheseaassalts.Nowadayswestillusetheterm.Th