(a) An AB6 molecule has no lone pairs of electrons on the Aatom. What is its molecular geometry? (b) An AB4 moleculehas two lone pairs of electrons on the A atom (in additionto the four B atoms). What is the electron-domain geometryaround the A atom? (c) For the AB4 molecule in part (b), predictthe molecular geometry.
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.
(a) An AB6 molecule has no lone pairs of electrons on the A
atom. What is its molecular geometry? (b) An AB4 molecule
has two lone pairs of electrons on the A atom (in addition
to the four B atoms). What is the electron-domain geometry
around the A atom? (c) For the AB4 molecule in part (b), predict
the molecular geometry.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
