10:00 PM Tue May 24 ← Lewis Dot Structures copy.pdf Lewis Dot Structures Name Draw the Lewis dot structures for the following molecules and ions. After finishing, use VSEPR Theory to predict the geometry of these compounds/ions, and then use the molecular model kits to make (and draw) models for the substances. This will allow you to verify your VSEPR predictions. The dot structures should be on this page and the predictions and drawing on a separate sheet. CS₂ NO3- C₂H₂ SiH₂F2 H₂S CH₂0 OF2 AlBr3 NF₂CI NH₁' CO BH3 (incomplete octet) 0₂ PH₂ 55%
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
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