Lone electron pairs give the geometry a triangular base.
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Repulsion of the unshared electron pairs (2)and the bonded pairs (2) around the central oxygen atom. Repulsion of these 4 electron pairs attempts to form a tetrahedral shape. Describing the molecular shape, we ignore the unshared electrons and just describe the shape of the molecule based on the location of the atoms, thus bent.
they are the same. Lone pair is unshared pair of electrons and bond pair is shared pair of electron.
The Carbon has double bonds to each of the oxygen atoms, so it does not have any unshared pairs or electrons. Valence shell electron pair repulsion theory dictates that the electron pairs will be repel, so the farthest apart they can be is 180 degrees apart or linear.
The VSEPR model has enabled chemists and students to describe, explain, and predict more easily the stereochemistry of chemical elements and compounds. The Lewis structure, which was primarily used to convey the appearance of molecules in the past, proved to be inadequate because there existed many exceptions to this type of diagram. The Lewis structure displayed no information about the geometry of a molecule as it did not indicate how atoms were arranged in space. The VSEPR theory has relieved chemists and students of such limitations by describing the orientation of a molecule in relation to the Pauli principle. By determining this principle affected molecular geometry, Gillespie illustrated that the repulsion interactions of all electron pairs, both shared and unshared ones, in the valence of a molecule determine its shape. This is due to the fact that electron pairs adapt an arrangement that keeps them as far apart as possible; they repel one another. glad to help grade 12 chem student
The bond angle between the two hydrogen is 104.5 degrees. If it weren't for the two unshared pairs of electrons pushing those atoms into a v-shape, the molecule would be linear.