高一化学必修二共价键演示课件.ppt

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1、Myh制作共价键Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.共价键Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientPro

2、file5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Review离子键的定义？哪些元素化合时可形成离子键？用电子式表示出k、S、K+、S2-、K2S？使阴、阳离子结合成化合物的静电作用。一般是活泼金属和活泼非金属离子间能形成Evaluationonly.CreatedwithAspose.Slidesfo

3、r.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.1、下列电子式中正确的是（）D2、下列电子式中正确的是（）CReviewEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copy

4、right2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.QuestionsH·和原子形成HCl过程中，能否形成离子键？为什么？Cl·······HCl分子不是通过离子键来形成，是通过什么方式结合的呢？不能，因非金属元素的原子均有获得电子的倾向。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5

5、ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Ｃl2气体分子H2气体分子H﹣H（结构式）Cl﹣Cl（结构式）电子式Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-

6、2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.分开后，她们为什么不高兴？让我们听听她们说些什么？H····Cl··：Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.Cr

7、eatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.我只有一个电子，太少了我也少一个电子eＨ原子Cl原子H····Cl··：Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5C

8、lientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.二位好！我有一个好办法．你们每人拿出一个电子共用，就象共同分享快乐一样共同拥有．行吗？e好呵谢谢好呵谢谢