Practice question
Question
What is the bond order of O₂²- according to molecular orbital theory?
Explanation
For O₂²- : 18 electrons, (sigma 1s)² (sigma^* 1s)² (sigma 2s)² (sigma^* 2s)² (sigma 2p_z)² (π 2p_x)² (π 2p_y)² (π^* 2p_x)² (π^* 2p_y)² . Bonding = 10, antibonding = 8. Bond order = 1/2 (10 - 8) = 1 .
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