Problem: Energy-level diagram for the He2+ ion.Which electrons in this diagram contribute to the stability of the He2+ ion?

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Recall: The bond order determines the stability of a molecule based on it's molecular orbital diagram.

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A diagram shows an He atom with two electrons in its 1s orbital and an He+ ion with one electron in its 1s orbital.  The higher energy antibonding MO (sigma*1s) has one electron in it, while the lower energy He2+ ion bonding orbital (sigma1s) is full (two electrons).
Energy-level diagram for the He2+ ion.

Which electrons in this diagram contribute to the stability of the He2+ ion?

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Our tutors have indicated that to solve this problem you will need to apply the Homonuclear Diatomic Molecules concept. If you need more Homonuclear Diatomic Molecules practice, you can also practice Homonuclear Diatomic Molecules practice problems.

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Based on our data, we think this problem is relevant for Professor Sinn's class at WMU.