The energy diagram shows the energies involved in bonds of bonding and anti-bond

Question

The energy diagram shows the energies involved in bonds of bonding and anti-bonding orbitals. The bonding levels for two unique 1s orbitals are equal and are also shown for your reference.



Which statement about this diagram is not correct? A. The anti-bonding orbital has a high energy level and also results in a bond that actually breaks up the bonding orbital. As a result, two helium atoms do not bond. Their electrons remain in separate 1s orbitals. B. Sites A and B represent the bonding orbitals in di-hydrogen and site A represents the bonding orbital in di-helium. C. Either 1s site is more stable than orbital site B. D. A bonding orbital is more stable than an anti-bonding orbital.

Explanation / Answer

answer: wrong statement

B.) Sites A and B represent the bonding orbitals in di-hydrogen and site A represents the bonding orbital in di-helium.

explanation :

sites A and B represent di helium . because di helium has totally 4 electrons. site A only represent di-hydrogen. because H2 has only two electrons . these two electrons filled in bonding molecular orbital . in di-helium 4 electrons filled in bonding and anti bonding molecular orbitals.

remaining options are 100 % correct.

bonding orbital more stable than anti bonding orbital

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