Match the following: Column I Column II Λ. XeT4 (p) Sea-saw B. SeF4 (q) Square planar C. X CO3 (

step 1 Hello. Question is we have to... Question is what? Match the column. So we have to do correct co

Match the following: Column I Column II Λ. XeT4 (p) Sea-saw...

Match the following:
Column I Column II
\Lambda. $\mathrm{XeT}_{4}$
(p) Sea-saw
B. $\mathrm{SeF}_{4}$
(q) Square planar
C. $\mathrm{X} \mathrm{CO}_{3}$
(r) Pyramiclal
[), $\mathrm{XcO}_{1}$
(s) Tctrahcdral
(t) one lone psur of electron on central atorn

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Key Concepts

VSEPR Theory

VSEPR (Valence Shell Electron Pair Repulsion) theory is a model used to predict the geometry of individual molecules based on the repulsion between electron pairs in the valence shell of the central atom. It helps determine the spatial arrangement of bonding and non-bonding electron pairs, thereby predicting the molecular shape.

Molecular Geometry

Molecular geometry refers to the three-dimensional arrangement of the atoms in a molecule. This geometry is largely determined by the number and arrangement of electron pairs around the central atom, which can lead to various shapes such as tetrahedral, seesaw, square planar, or trigonal pyramidal.

Lone Pair Effects

Lone pairs of electrons occupy space around the central atom and exert repulsive forces that influence the bond angles in a molecule. These non-bonding electron pairs can distort ideal bond angles predicted by simple geometric arrangements, resulting in molecular shapes that differ from perfect symmetry.

Steric Number

The steric number is the total count of electron density regions (both bonding pairs and lone pairs) around a central atom. This number is crucial in determining the molecular shape because it indicates how many electron domains will repel each other, thus guiding the overall geometry of the molecule.

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