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show me the MOT in simpler form of helium.

Asked by Jisha Mary Thomas 4th October 2013, 7:10 PM
Answered by Expert
If we were to form He2 molecule from 2 He atoms, we need to apply LCAO-MO method on their TWO 1s AO's, each AO having 2 e, giving 2 MOs, a bonding sigma MO (sigma-BMO) with 2 electrons in it, and an ant-bonding sigma MO (sigma-ABMO), also with 2 electrons. The bond order = no. of pairs of e in BMOs - no of pairs of e in ABMO, will be ZERO, hence no such moleculecule can ever exist.
Answered by Expert 5th October 2013, 4:10 PM
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