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- Give the electron configuration and the number of unpaired electrons for (a) Sc³⁺; (b) Cu²⁺; (c) Fe³⁺; (d) Nb³⁺Discuss the nature of the bonding in the nitrate ion (NO5). Draw the possible Lewis resonance diagrams for this ion. Use the VSEPR theory to determine the steric number, the hybridization of the central N atom, and the geometry of the ion. Show how the use of resonance structures can be avoided by introducing a de-localized 7 MO. What bond order is predicted by the MO model for the N-O bonds in the nitrate ion?Determine the geometry of the ClF2+ ion using the VSEPR theory. Provide information about the polarity,hybrid type and Bond angle of the structure. (CL:7A,F:7A)
- What is the molecular geometry of the SbF52−ion?(a) octahedral(b) trigonal bipyramidal(c) square pyramidal(d) tetrahedraDetermine the geometry of the ClF2+ ion using the VSEPR theory. Provide information about the polarity, hybrid type and bond angle of the structure. (Cl: VIIA, F: VIIA)An ionic compound, LiN((CH3)3Si)2 is commercially available and can be synthesised by deprotonation of ((CH3)3Si)2NH with C4H9Li. Draw an orbital diagram and a sketch to show the overlap of orbitals that produce the bonding in ((CH3)3Si)2N− anion and predict whether the Si−N−Si bond angle in the ((CH3)3Si)2N− anion is larger than, equal to or smaller than 109.5. explain
- Predict the valence electron molecular orbital configurations for the following, and state whether they will be stable or unstable ions. (a) Na22+ (b) Mg22+ (c) Al22+ (d) Si22+ (e) P22+ (f) S22+ (g) F22+ (h) Ar22+The species CO, CN-, and C22- are isoelectronic.(a) Draw their Lewis structures.(b) Draw their MO diagrams (assume 2s-2p mixing, as in N2), and give the bond order and electron configuration for each.The Electron pair geometry, molecular geometry and Hybridization for NCl3 is (a) Tetrahedral, Trigonal pyramidal, sp^3 (b) Trigonal planar, Bent, sp^2 (c) Bent, Trigonal planar, sp^2 (d) None