Molecular orbital (MO) diagram of each molecule.
Step 1: The total number of valence electrons present in O2 is:
Group Valence Electrons
O 6A 2 × 6 e– = 12 e–
Total: 12 valence e–
Step 2: The molecular orbital diagram for O2 is:
Some species consisting of just two oxygen atoms are the oxygen molecule, O 2; the peroxide ion, O22−; the superoxide ion, O 2−; and the dioxygenyl ion, O 2+. Draw an MO diagram for each, rank the species in order of increasing bond length, and find the number of unpaired electrons in each.
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