Question

Discuss the shape of the following molecules using the VSEPR model: $BeCl_{2}, BCl_{3}, SiCl_{4},AsF_{5}, H_{2}S,PH_{3}$.

Answer 1

"The overlap of atomic orbits leads to the development of a chemical bond because of the overlap, electrons are located in the bond region. It describes the “electronic structure” of molecules.

Postulates:

· The “overlap” of two half-filled “valence orbitals” of different atoms leads to covalent bond formation. It stabilises the molecule.

· If the atomic orbitals have more than one “unpaired electron”, more than “one bond” are formed and “electrons” coupled in the “valence shell” cannot participate in the formation of such a bond.

· There are two types of “covalent bonds” according to the overlap pattern such as sigma and pi. The covalent bond formed by the side-overlapping of atomic orbitals is known as the pi bond while the bond formed by atomic orbital overlapping along the “inter-core axis” is known as the sigma bond.

· It is directional."

Answer 2

Answer:

This is the correct information

Explanation:

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