Molecular Orbital Theory 1.1 Which model, the Lewis electron dot structure or the MO energy level diagram,...

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Chemistry

Molecular Orbital Theory
1.1 Which model, the Lewis electron dotstructure or the MO energy level diagram, better describes thebonding in O₂? Remember that liquid O₂ isattracted into the magnetic field of a large magnet.
True or False.
_ MO theory allows us to avoid the use of resonance.
_ Resonance is a concept which arises from the limitationsof Lewis electron dot structures
1.2 As we go from Li₂ toLi₃ to Li₄ to Li_n, the number ofmolecular orbitals formed from the 2s atomic orbitals goes from 2to to to respectively, and the spacing between energylevels _____.
1.3 In the caseof a metal, the lowest unoccupied MO is only infinitesimally higherin energy than the highest occupied MO, so it takes very littleenergy to cause electrons to move in a metal wire. In the case of asemiconductor, there is a _ band gap between the full valenceband and the empty conduction band. In the case of an insulator,there is a ___ band gap between the full valence band and theempty conduction band.

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11 The MO energy diagram explains the paramagnetic characterof O2 molecule whereas the Lewis dot structure does notdescribes much Hence the MO energy diagram describes the bondingin O2 better than the Lewis dot structureThe MO theory does See Answer

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