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In: Chemistry

Which statement is false? In MO theory all electrons are accounted for, not just the valence...

Which statement is false?

In MO theory all electrons are accounted for, not just the valence electrons.
No two molecular orbitals for any molecule ever have the same energy.
Electrons occupy MOs by following Hund’s Rule.
Electrons occupy MOs by following the Aufbau Principle.
Electrons occupy MOs by following the Pauli Exclusion Principle.

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