Practice question
Question
Which molecule has a bond order of zero and does not exist?
Explanation
For Ne₂ : (sigma 1s)² (sigma^* 1s)² (sigma 2s)² (sigma^* 2s)² (sigma 2pz)² (pi 2px)² (pi 2py)² (pi^* 2px)² (pi^* 2py)² (sigma^* 2pz)² . Bonding = 10, antibonding = 10. Bond order = (10 - 10/2) = 0 .
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