مخطط الكشف عن الشقوق القاعدية في الأملاح البسيطة Qualitative analysis, Basic Radicals:         بوسترات (لوحات) كيميائية بدقة عالية (أكثر من 25 لوحة) من تصميم الأستاذ أكرم أمير العلي   تطبيقات كيميائية من تصميم الأستاذ أكرم امير العلي متوفر للجوالات التي تعمل بنظام أندرويد android على سوق جوجل بلاي google play 1 –

Hybridization :  is a mathematical concept which implies for the mixing of various atomic orbitals with slightly different energies of the same atom to construct equal number of hybrid (mixed) orbitals of equal energy, in a molecule. For an isolated atom, however. the hybridization has no meaning. Hybridization involves promotion of electron from a lower

Hydrogen bond: It is a bond formed between a hydrogen atom attached to a highly electrovalent atom (F,O,N) and another highly electronegative atom of the same or different molecule and having a lone pair of electrons. Condition for hydrogen bonding : (i) The electronegative atom attached to the hydrogen should be small. (ii) The electronegativity