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.
How to use phorshorus correctly in a Lewis Structure since it may have 10 + electrons? and how is that possible?
The electrons present in the outermost shell of an atom are called valence electrons. These electrons take part in bond formation as well as in chemical reactions.
In the formation of the chemical bond with the same or different elements, all elements tend to complete their octet configuration. It is known as Octet rule. The octet configuration (means 8 electrons in the valence shell of the bonded atom) can be achieved by either sharing of electrons to form a covalent bond or by the complete transfer of electrons that leads to the formation of an ionic bond.
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