Chemical Bonding and Molecular Structure - Result Question 88

####90. Identify a molecule which does not exist. [2020]

(a) Li2

(b) C2

(c) O2

(d) He2

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Solution:

  1. (d) For He2 molecule, Electronic configuration is σ1s2,σ1s2

Bond order =12(NbNa)=12(22)=0

Since, bond order of He2 is zero, so it does not exist.



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