Question

State the The 6 main postulates of VSEPR Theory​

Answer 1

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• The the shape of a molecule depends upon the number of valence shell electron pairs.
• Pairs of electrons in the valence shell repel one another since their electron clouds are negatively charged.
• These pairs of electrons tend to occupy such positions in space that minimise repulsion and thus maximize distance between them.
• Multiple bond is treated as if it is a single electron pair and the two or three electron pairs of a multiple bond I treated as a single super pair.
• The valence shell is take another sphere with the electron there's localizer on the special surface at maximum distance from one another.
• Where two or more resonance structures can represent a molecule, the VSEPR model is applicable to any structure

Answer 2

Answer:

POSTULATES

OF VSEPR THEORY

1)) In polyatomic molecules (i.e. molecules made up of three or more atoms), one of the constituent atoms is identified as the central atom to which all other atoms belonging to the molecule are linked.

2)) The total number of valence shell electron pairs decides the shape of the molecule.

3)) The electron pairs have a tendency to orient themselves in a way that minimizes the electron-electron repulsion between them and maximizes the distance between them.

4)) The valence shell can be thought of as a sphere wherein the electron pairs are localized on the surface in such a way that the distance between them is maximized.

5)) Should the central atom of the molecule be surrounded by bond pairs of electrons, then, the asymmetrically shaped molecule can be expected.

6))Should the central atom be surrounded by both lone pairs and bond pairs of electrons, the molecule would tend to have a distorted shape.

7))The VSEPR theory can be applied to each resonance structure of a molecule.

The VSEPR theory can be applied to each resonance structure of a molecule.The strength of the repulsion is strongest in two lone pairs and weakest in two bond pairs.

8))If electron pairs around the central atom are closer to each other, they will repel each other. This results in an increase in the energy of the molecules.

9))If the electron pairs lie far from each other, the repulsions between them will be less and eventually, the energy of the molecule will be low.