Molecular Orbital Theory 1 Which of these orbitals are anti bonding molecular orbitals I III A B C D E F G II IV I II III I and II II and III II III and IV I III and IV 2 Which one of the following diatomic molecules is least likely to exist A B C D E F Li2 Be2 B2 C2 N2 O2 3 Based on molecular orbital theory which one of the molecules in the list below has unpaired electrons A B C D E C2 N2 F2 O2 Li2 4 Based on molecular orbital theory what is the bond order of the H H bond in the H2 ion A B C D E 0 1 2 1 3 2 2 5 Molecular Orbital theory correctly predicts paramagnetism of oxygen gas O2 Why A The bond order in O2 can be shown to be equal to 2 B There are more electrons in the bonding orbitals than in the antibonding orbitals C The energy of the 2p MOs is higher than that of the 2p MO D There are two unpaired electrons in the MO electron configuration of O2 E The O O bond distance is relatively short 6 Use this energy level diagram for the valence electrons to answer the next question What is the bond order of OF and how many unpaired electrons are there in the ion A B C D E Bond Order 1 0 2 1 2 unpaired electrons 0 1 2 2 1
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