Gouri Shankar posted an Question
December 04, 2020 • 10:21 am 30 points
  • IIT JAM
  • Chemistry (CY)

Explain steric number

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    Dinesh khalmaniya 1 best-answer

    Number of lone pairs = 1 number of sigma bonds = 6

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    Priyanshu kumar best-answer

    No of lone pairs on central metal atom=1 No of sigma bonds=6 Steric number is equal to sum of number of sigma bonds surrounding the atom and lone pairs on the atoms

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    Explanation of bonding:- VSEPR doesn't give correct explanation of these transition metal complexes. TeBr6 2- are predicted to adopt pentagonal bipyramidal geometries according to VSEPR since the central atom can have seven electron pairs. However, due to the stereochemical inert pair effect, these molecules are found to be regular octahedral because one of the electron pairs is stereochemically inactive.

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