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Date: 8-4-2019
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Date: 26-1-2017
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Date: 28-12-2016
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Locating Those Electrons
Many of the important topics in chemistry, such as chemical bonding, the shape of molecules, and so on, are based on where the electrons in an atom are located. Simply saying that the electrons are located outside the nucleus isn’t good enough; chemists need to have a much better idea of their location, so this section helps you figure out where you can find those pesky electrons.
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تجربة بسيطة مدتها 3 دقائق تحسن النظر كثيرا
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الصين.. تطوير محفز نانوي رخيص الثمن لتنقية المياه من النترات
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بحضور علمائي ورسمي .. العتبة العلوية المقدسة ترفع راية الحزن والحداد إيذاناً بحلول شهر محرم الحرام
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