11. Are the angles between the phosphorus:hydrogen bonds ideal, less than ideal, or greater ideal? In the space provided write either ideal , less than, or greater than: __

Question

11. Are the angles between the phosphorus:hydrogen bonds ideal, less than ideal, or greater ideal? In the space provided write either ideal , less than, or greater than: __

Answer 1

To determine whether the angles between the phosphorus-hydrogen (P-H) bonds in a molecule are ideal, less than ideal, or greater than ideal, we need to consider the molecular geometry of the compound.For example, if we consider phosphine (PH₃), the central phosphorus atom is bonded to three hydrogen atoms. Phosphorus has five valence electrons, and when it forms three single bonds with hydrogen atoms, there is one lone pair of electrons remaining on the phosphorus atom.The presence of this lone pair affects the bond angles due to electron pair repulsion. According to the VSEPR (Valence Shell Electron Pair Repulsion) theory, the lone pair-bond pair repulsion is stronger than bond pair-bond pair repulsion, which causes the bond angles to be slightly less than the ideal tetrahedral angle of 109.5°.Therefore, the angles between the phosphorus-hydrogen bonds in PH₃ are **less than** ideal.So, the answer is: less than

Problemas

11. Are the angles between the phosphorus:hydrogen bonds ideal, less than ideal, or greater ideal? In the space provided write either ideal , less than, or greater than: __

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