What is the role of wave interference in determining whether a molecular orbital is bonding or antibonding? Match the words in the left column to the appropriate blanks in the sentences on the right. constructive an increased a diminished higher opposite phases the same phase particles waves destructive lower Reset Help The electrons in orbitals behave like waves therefore the bonding molecular orbital arises from the constructive interference between the atomic orbitals, because orbitals have the same phase ; the antibonding molecular orbital arises from the destructive interference between the atomic orbitals, because the interacting orbitals have opposite phases. The bonding orbital has higher electron density in the internuclear region and, therefore, lower energy. The antibonding orbital has a node in the internuclear region and, therefore, higher in energy than atomic orbitals.
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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