3. For each of the following compounds, indicate the total number of valence electrons - VE, draw the Lewis structure(s), calculate the bond order - BO- of the central ion, calculate the formal charge of each atom in the molecule, and determine the hybridization of the central ion. Show the formal charges in () to the upper right of each atom, then put the bond order and central atom hybridization (CAH - Ex. sp) on the lines provided. Under the structure (resonance structures if the molecule has them), name the general and specific shapes of the molecule. a) BF3 VE = b) XeF4 c) SO3 General Shape (Electron Domain Geometry) = Specific Shape (Molecular Geometry) = d) SO3²- (latot) Sy General Shape (Electron Domain Geometry) = . Specific Shape (Molecular Geometry) = noi General Shape (Electron Domain Geometry) = minu Specific Shape (Molecular Geometry) = General Shape (Electron Domain Geometry)= Specific Shape (Molecular Geometry) = BO= CAH = VE = BO= CAH = VE = BO= CAH = VE = BO = CAH =
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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