Question

What are the main postulates of VSEPR theory (Valence Shell Electron Pair Repulsion)?​

Answer 1

Answer:

The main postulates of VSEPR theory are....

• The shape of molecule depends on the number of valence shell electron pair around Central atom.
• The pair of electron in the valence shell repel each other since then their electron clouds are negatively charged.
• These pair of electron are tend to occupy such position in space so that there will be minimum Repulsion and thus maximum distance between them makes the molecule more stable.
• A multiple bond is treated as single electron pair.

Answer 2

Answer:

Valence Shell Electron pair repulsion : -

(1) Sidgwick and Powell proposed valence shell electron pair repulsion theory to predict the shapes of covalent molecules

(2) It is based on idea that the electron pairs on the atoms in a molecule repel each other

(3) The atoms in a molecule arrange themselves in such a way that repulsion is minimised.

(1) The arrangement of electrons is called electron pair geometry