example. Molecule Lewis Structure Electron Molecular Hybridization Molecular Or ion Geometry Geometry of Central atom polarity H20 H---O---H Tetrahedral bent sp3 polar CH4 BH3 CH2BR2 NH3 H30* H2O2 CHẠO [CIO3]) Na,SO4 SO2 CO2 C2H4
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.
![Complete the data table shown below. Fill in the table as you draw your molecules as in the following
example.
Molecule
Lewis Structure
Electron
Molecular
Hybridization
Molecular
Or ion
Geometry
Geometry
of Central atom
polarity
H20
H---O---H
Tetrahedral
bent
sp3
polar
CHA
BH3
CH2B12
NH3
H30*
H2O2
CHẠO
[CIO3]
Na2SO4
SO2
CO2
C2H4
NH4*
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