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Date: 30-4-2019
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Date: 6-7-2017
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Date: 28-2-2017
2204
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An example of trigonal planar electron pair geometry and molecular geometry is BH3. This molecule is electron deficient and does not follow the octet rule because it has only 6 valence electrons. The hydrogen atoms are as far apart as possible at 120o. This is trigonal planar geometry. The molecule all in a plane and is two dimensional.This molecule exists in a gaseous state in only minute quantities under specialized conditions as an intermediate in the making of other boron hydride type molecules.
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لصحة القلب والأمعاء.. 8 أطعمة لا غنى عنها
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حل سحري لخلايا البيروفسكايت الشمسية.. يرفع كفاءتها إلى 26%
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جامعة الكفيل تحتفي بذكرى ولادة الإمام محمد الجواد (عليه السلام)
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