and the AB4 molecule forms a tetrahedron with A in the B. Element M is less electronegative than L and the LM₂ molecule lies in a straight line with L in the middle. C. Element T is more electronegative than Q and the QT2 molecule is angular (bent) with Q in the middle. D. Element C is less electronegative than D and the CD, molecule forms a pyramid with the D's at the corners of the triangular base and the C above the plane of the triangle. E. Element S is more electronegative than V and the SV3 molecule forms a "T" with the V's at the corners of the "T" and the S is at the crossbar of the "T". A. Element A is more electronegative than middle. F. Element L is more electronegative than K and the KL4 molecule forms a square with the L's at the corners and K at the center of the square. Polarity of bond (if any) Sketch of molecular shape Is the species polar or nonpolar? Explain.
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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