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Question

What is the shape of Xenon difluoride?


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Solution

Hybridization:

  • It is the process of intermixing of the orbitals of slightly different energies so as to redistribute their energies, resulting in the formation of a new set of orbitals of equivalent energies and shapes.
  • The hybridized orbitals are always equivalent in energy and shape.

The formula used to calculate the hybridization of a molecule is as follows:

  • Numberofelectronpair=12[V+N-C+A]

where,

V is the number of valence electrons present in the central atom

N is the number of monovalent atoms bonded to the central atom

C is the charge of cation

A is the charge of anion

  • The given molecule is, xenon difluoride (XeF2)

Numberofelectronpair=12×[8+2-0+0]=102=5

The number of electron pairs is 5 which means the hybridization will be sp3d and the electronic geometry of the molecule will be trigonal bipyramidal.

But as there are 3 atoms around the central xenon atom, the 3rd,4thand5th position will be occupied by lone pair of electrons. Hence the molecular geometry will be linear.

Therefore, the shape of xenon difluoride is linear.


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