VSEPR Theory
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a month agoContributor-Level 10
A central atom having two lone pairs and three bond pairs reflects sp³d hybridization and a corresponding T-shaped geometry.
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2 months agoBeginner-Level 5
Molecules usually form chemical bond through either sharing or through rtransfering the electrons. During covalent bonding the electron pairs shared between atoms to form covalent bond are called shared pair or bond pair. At the same time, the electron pair which is not involved in sharing is called lone pair of electrons.
For example: CH4 has 4 bond pairs but H2O has 2 bond pairs and 2 lone pairs.
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2 months agoBeginner-Level 5
The Valence Shell Electron Pair Repulsion (VSEPR) Theory is an algorithm developed to predict the molecular geometry of the compounds. The VSEPR theory predict the molecular shape based on the repulsion between electron pairs (bonding and lone) around the central atom. As per the NCERT Textbooks:
“According to this theory, the shape of a molecule depends upon the number of valence shell electron pairs around the central atom. Electron pairs repel each other and try to remain as far apart as possible to minimise repulsion, thus determining the geometry of the molecule.”
You can use this theory in primarily explaining the molecular str
New answer posted
2 months agoBeginner-Level 5
VSEPR theory predicts the shape of molecule based on postulate (assmptions). here are the important postulates as per the NCERT textbooks.
- The molecular geometry shape depends upon the number of valence shell electron pairs (bonded and non-bonded) around the central atom.
- The electron pairs (bonded and lone pairs) in the valence shell repel each other since their electron clouds are negatively charged.
- These electron pairs arrange themselves to minimize repulsion so that the molecule attains a stable structure with minimum energy.
- All electron pair repulsion doesn't repel each other equally, Electron pairs follows this order:
Lone pai
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