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Devin
Professor
RossThe lone pair on an atom exerts repulsion on bonded pairs of electrons, which can distort the bond angles and contribute to the overall shape of the molecule. In some cases, the presence of a lone pair can cause a deviation from the expected bond angles in a molecule, leading to a specific geometry such as trigonal pyramidal or bent.
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How does a lone pair disort the molecular shape?
The lone pair forces bonding atoms away from itself
What effect does a lone electron pair have a molecular shape?
The lone pair pushes bonding electron pairs away.
How many lone pairs are aound the central atom in IF5?
There are two lone pairs around the central atom (Iodine) in IF5. The molecule has a trigonal bipyramidal shape with one lone pair in the axial position and one in the equatorial position.
What is the shape and polarity of Br2O?
The shape of Br2O is bent due to the lone pair on the central oxygen atom. The molecule is polar because the bromine atoms have a higher electronegativity than oxygen, causing an uneven distribution of electron density in the molecule.
What shape would a molecule with two bound groups and two lone pair have?
A molecule with two bound groups and two lone pairs would have a bent or V-shape molecular geometry. This arrangement results in a bond angle less than 180 degrees between the two bound groups. An example of such a molecule is water (H2O).
