Postulates of VSEPR Theory
Various postulates of the VSEPR Theory are,
- All the electron pairs in the molecule are arranged in such a way that they minimize the repulsion between the electron pairs of the atom.
- The central atom of the polyatomic atom is the atom to which all the other atoms of the molecule are linked.
- Valance Shell electrons of the molecule are responsible for the shape of the molecule.
- The valence shell of the molecules is arranged in such a way that the distance between them is maximum and the repulsion between them is minimum.
- If the central atom of the molecule is surrounded by bond pairs of electrons, then the asymmetrically shaped molecule is formed.
- If the central atom of the molecule is surrounded by lone pairs and bond pairs of electrons, then the shape of the molecule so formed is distorted.
- In each resonance state of the molecule, their structure is explained using the VSEPR theory.
- The force of repulsion between the lone pairs, lone pair, and bond pair, and bond pairs follows the order.
Lone Pair – Lone Pair > Lone Pair – Bond Pair > Bond Pair – Bond Pair
VSEPR Theory
VSEPR Theory tells us about the basic structure of the molecules based on the force of repulsion between lone pair and bond pair of electrons. It states that any molecule arranged in such a structure minimizes the repulsion between the lone pair and bond pair of the molecule.
Let’s learn more about VSEPR theory in detail, including its postulates, limitations, and examples.
Table of Content
- What Is VSEPR Theory?
- Postulates of VSEPR Theory
- Predicting Shapes of Molecules
- VSEP Number
- VSEPR Shapes of Molecules
- Limitations of VSEPR Theory
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