نکته ها و مفاهیم درسهایی از شیمی پایه
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ارائه ی درسها وسئوالات امتحانات داخلی ونهایی و کنکور دانشگاههاو ازمایشهای جالب و مطالب مختلف دیگر

مدیر وبلاگ : عبداله جهانتاب
چرا  ساختار C2H4 و دلیل ناقطبی است

ساختار C2H4 و دلیل ناقطبی بودن


با توجه به اینکه در ملکول C2H4 هر کدوم از بخش ها دارای ساختار سه ضلعی مسطح است و به هر کربن دو هیدروژن و یک کربن وصل است( اطراف اتم مرکزی گروه های متفاوت) پس چرا یک ملکول ناقطبی است؟


 

 

 

جواب. قطبیت یک مولکول به تقارن کل مولکول بستگی دارد. مولکول های زیادی وجود دارند که مراکز ناقطبی دارند ولی در مجموع مولکول متقارن بوده و ناقطبی خواهد بود. مولکول هایی نظیر N2O4 , C2H4 , C2H2 و مشابه آنها ، متقارن بوده و ناقطبی می باشند.

 





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برچسب ها : درسهایی از شیمی،
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